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1-(2,2-Difluoro-benzo[1,3]dioxol-5-yl)-cyclopropanecarboxylic acid is a chemical compound characterized by its unique structure, which features a cyclopropanecarboxylic acid core with a 2,2-difluoro-benzo[1,3]dioxol-5-yl group attached to it. 1-(2,2-Difluoro-benzo[1,3]dioxol-5-yl)-cyclopropanecarboxylicacid is known for its potential applications in the synthesis of pharmaceuticals and other organic compounds.

862574-88-7

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862574-88-7 Usage

Uses

Used in Pharmaceutical Industry:
1-(2,2-Difluoro-benzo[1,3]dioxol-5-yl)-cyclopropanecarboxylic acid is used as a key intermediate in the synthesis of Tezacaftor, a medication used for the treatment of cystic fibrosis. It plays a crucial role in the preparation of the final drug product, contributing to its therapeutic efficacy and helping improve the quality of life for patients suffering from this genetic disorder.
Additionally, 1-(2,2-Difluoro-benzo[1,3]dioxol-5-yl)-cyclopropanecarboxylicacid may also be utilized in the development of other pharmaceuticals and organic compounds, given its unique structural features and potential reactivity in various chemical reactions. Its applications in the pharmaceutical industry highlight its importance in the synthesis of life-saving medications and the advancement of medical research.

Check Digit Verification of cas no

The CAS Registry Mumber 862574-88-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,2,5,7 and 4 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 862574-88:
(8*8)+(7*6)+(6*2)+(5*5)+(4*7)+(3*4)+(2*8)+(1*8)=207
207 % 10 = 7
So 862574-88-7 is a valid CAS Registry Number.
InChI:InChI=1/C11H8F2O4/c12-11(13)16-7-2-1-6(5-8(7)17-11)10(3-4-10)9(14)15/h1-2,5H,3-4H2,(H,14,15)

862574-88-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name 1-(2,2-Difluorobenzo[1,3]dioxol-5-yl)-cyclopropanecarboxylic acid

1.2 Other means of identification

Product number -
Other names 1-(2,2-difluoro-1,3-benzodioxol-5-yl)cyclopropane-1-carboxylic acid

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:862574-88-7 SDS

862574-88-7Synthetic route

1-(1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropyl)ethanone

1-(1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropyl)ethanone

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
With N-benzyl-N,N,N-triethylammonium chloride; sodium hydroxide In tetrachloromethane; dichloromethane at 20℃; for 16h; Inert atmosphere;100%
C12H10F2O4

C12H10F2O4

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
With sodium hydroxide at 85℃; for 2h;95.2%
With methanol; sodium hydroxide at 20℃; for 20h;87.3%
1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarbonitrile
862574-87-6

1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarbonitrile

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
Stage #1: 1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarbonitrile With sodium hydroxide In ethanol at 100℃; for 3h; Inert atmosphere;
Stage #2: With hydrogenchloride In ethanol; water pH=2; Cooling; Inert atmosphere;
88%
Stage #1: 1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarbonitrile With sodium hydroxide In ethanol at 77 - 80℃; for 16h;
Stage #2: With hydrogenchloride In ethanol; dichloromethane at 10 - 25℃;
79%
Stage #1: 1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarbonitrile With sodium hydroxide In ethanol at 80℃;
Stage #2: With hydrogenchloride In tert-butyl methyl ether
69%
ethyl 1-(2,2-difluorobenzo[D] [1,3]dioxol-5-yl)cyclopropanecarboxylate

ethyl 1-(2,2-difluorobenzo[D] [1,3]dioxol-5-yl)cyclopropanecarboxylate

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
With sodium hydroxide In methanol at 10 - 30℃; for 2h;81.1%
2-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)acetonitrile
68119-31-3

2-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)acetonitrile

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
79%
79%
79%
2-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)acetonitrile
68119-31-3

2-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)acetonitrile

1-Bromo-2-chloroethane
107-04-0

1-Bromo-2-chloroethane

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
With N-benzyl-N,N,N-triethylammonium chloride; sodium hydroxide In water at 75℃; for 24h;52%
1-(2,2-difluoro-1,3-benzodioxol-5-yl)cyclopropanecarboxylic acid dicyclohexylamine salt

1-(2,2-difluoro-1,3-benzodioxol-5-yl)cyclopropanecarboxylic acid dicyclohexylamine salt

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
With water; citric acid In tert-butyl methyl ether
With citric acid In tert-butyl methyl ether
tert-butyl methyl ether
1634-04-4

tert-butyl methyl ether

N-cyclohexyl-cyclohexanamine
101-83-7

N-cyclohexyl-cyclohexanamine

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
With hydrogenchloride; NaOH; citric acid In ethanol; n-heptane
With hydrogenchloride; NaOH; citric acid In ethanol; n-heptane; water
5-bromo-2,2-difluoro-2H-1,3-benzodioxole
33070-32-5

5-bromo-2,2-difluoro-2H-1,3-benzodioxole

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: sodium phosphate; tri-tert-butyl phosphine / bis(dibenzylideneacetone)-palladium(0) / toluene; hexanes / 0.83 h / 23 °C / Inert atmosphere
1.2: 70 °C
2.1: hydrogenchloride / water; dimethyl sulfoxide / 40 - 75 °C
3.1: tetraoctyl ammonium bromide; potassium hydroxide / water / 1 h / 70 °C
4.1: sodium hydroxide; water / ethanol / 80 °C
View Scheme
Multi-step reaction with 4 steps
1.1: sodium phosphate; tris-(dibenzylideneacetone)dipalladium(0); tri-tert-butyl phosphine / toluene; hexane / 0.83 h / 23 °C / Inert atmosphere
1.2: 0.67 h / 70 °C
2.1: hydrogenchloride / dimethyl sulfoxide; water / 1 h / 40 - 75 °C
3.1: potassium hydroxide; tetraoctyl ammonium bromide / water / 1 h / 70 °C
4.1: sodium hydroxide; water / ethanol / 80 °C
View Scheme
Multi-step reaction with 4 steps
1.1: sodium phosphate; bis(dibenzylideneacetone)-palladium(0); tributylphosphine / toluene; hexane / 0.85 h / 23 °C / Inert atmosphere
1.2: 70 °C
2.1: hydrogenchloride / dimethyl sulfoxide; water / 40 - 75 °C
3.1: potassium hydroxide; tetraoctyl ammonium bromide / water / 1 h / 70 °C
4.1: sodium hydroxide / ethanol / 80 °C
View Scheme
2,2-difluoro-1,3-benzodioxole-5-carboxylic acid
656-46-2

2,2-difluoro-1,3-benzodioxole-5-carboxylic acid

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: sodium bis(2-methoxyethoxy)aluminium dihydride / toluene / 15 - 40 °C
1.2: 0.5 h / 40 - 50 °C
2.1: thionyl chloride / dmap / tert-butyl methyl ether / 1.5 h / 15 - 30 °C
3.1: dimethyl sulfoxide / 1 h / 30 - 40 °C
4.1: tetraoctyl ammonium bromide; potassium hydroxide / water / 1 h / 70 °C
5.1: sodium hydroxide; water / ethanol / 80 °C
View Scheme
Multi-step reaction with 4 steps
1: aq. NaOH / toluene
2: thionyl chloride; aq. NaOH / dmap / water
3: NaCN / water; dimethyl sulfoxide
View Scheme
Multi-step reaction with 4 steps
1: aq. NaOH / toluene
2: thionyl chloride; aq. NaOH / dmap / water
3: NaCN / water; dimethyl sulfoxide
View Scheme
(2,2-difluoro-1,3-benzodioxol-5-yl)methanol
72768-97-9

(2,2-difluoro-1,3-benzodioxol-5-yl)methanol

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: thionyl chloride / dmap / tert-butyl methyl ether / 1.5 h / 15 - 30 °C
2: dimethyl sulfoxide / 1 h / 30 - 40 °C
3: tetraoctyl ammonium bromide; potassium hydroxide / water / 1 h / 70 °C
4: sodium hydroxide; water / ethanol / 80 °C
View Scheme
Multi-step reaction with 3 steps
1: thionyl chloride; aq. NaOH / dmap / water
2: NaCN / water; dimethyl sulfoxide
View Scheme
Multi-step reaction with 3 steps
1: thionyl chloride; aq. NaOH / dmap / water
2: NaCN / water; dimethyl sulfoxide
View Scheme
5-chloromethyl-2,2-difluoro-benzo[1,3]dioxole
476473-97-9

5-chloromethyl-2,2-difluoro-benzo[1,3]dioxole

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: dimethyl sulfoxide / 1 h / 30 - 40 °C
2: tetraoctyl ammonium bromide; potassium hydroxide / water / 1 h / 70 °C
3: sodium hydroxide; water / ethanol / 80 °C
View Scheme
Multi-step reaction with 3 steps
1: dimethyl sulfoxide / 1 h / 30 - 40 °C
2: potassium hydroxide; tetraoctyl ammonium bromide / water / 1 h / 70 °C
3: sodium hydroxide; water / ethanol / 80 °C
View Scheme
Multi-step reaction with 3 steps
1: dimethyl sulfoxide / 1 h / 30 - 40 °C
2: potassium hydroxide; tetraoctyl ammonium bromide / water / 1 h / 70 °C
3: sodium hydroxide / ethanol / 80 °C
View Scheme
(2,2-difluoro-1,3-benzodioxol-5-yl)-1-ethyIacetate acetonitrile
1335233-51-6

(2,2-difluoro-1,3-benzodioxol-5-yl)-1-ethyIacetate acetonitrile

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: hydrogenchloride / water; dimethyl sulfoxide / 40 - 75 °C
2: tetraoctyl ammonium bromide; potassium hydroxide / water / 1 h / 70 °C
3: sodium hydroxide; water / ethanol / 80 °C
View Scheme
Multi-step reaction with 3 steps
1: hydrogenchloride / dimethyl sulfoxide; water / 40 - 75 °C
2: potassium hydroxide; tetraoctyl ammonium bromide / water / 1 h / 70 °C
3: sodium hydroxide / ethanol / 80 °C
View Scheme
Multi-step reaction with 3 steps
1: hydrogenchloride / dimethyl sulfoxide / 40 - 75 °C
2: potassium hydroxide; tetraoctyl ammonium bromide / water / 1 h / 70 °C
3: sodium hydroxide / ethanol / 80 °C
View Scheme
1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarbonitrile
862574-87-6

1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarbonitrile

4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran
96042-30-7

4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
With hydrogenchloride; NaOH In ethanol
N-cyclohexyl-cyclohexanamine
101-83-7

N-cyclohexyl-cyclohexanamine

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
With hydrogenchloride; citric acid In ethanol; n-heptane
(2,2-difluoro-1,3-benzodioxol-5-yl)-1-ethylacetate-acetonitrile

(2,2-difluoro-1,3-benzodioxol-5-yl)-1-ethylacetate-acetonitrile

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: hydrogenchloride / dimethyl sulfoxide; water / 1 h / 40 - 75 °C
2: potassium hydroxide; tetraoctyl ammonium bromide / water / 1 h / 70 °C
3: sodium hydroxide; water / ethanol / 80 °C
View Scheme
2,2-difluorobenzo[1,3]dioxole-5-carboxylic acid methyl ester
773873-95-3

2,2-difluorobenzo[1,3]dioxole-5-carboxylic acid methyl ester

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / 0 - 20 °C
2: thionyl chloride / dichloromethane / 0 - 20 °C
3: dimethyl sulfoxide / 20 °C
4: sodium hydroxide; N-benzyl-N,N,N-triethylammonium chloride / 70 °C
5: sodium hydroxide / water / 2.5 h / Reflux
View Scheme
Multi-step reaction with 5 steps
1.1: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / 0 - 25 °C / Inert atmosphere
2.1: thionyl chloride / dichloromethane / 4 h / 20 °C
3.1: sodium cyanide / dimethyl sulfoxide / 2 h / 20 - 40 °C
4.1: sodium hydroxide; tetrabutylammomium bromide / water; ethanol / 48 h / 70 °C / Inert atmosphere
5.1: sodium hydroxide / ethanol / 3 h / 100 °C / Inert atmosphere
5.2: pH 2 / Cooling; Inert atmosphere
View Scheme
Multi-step reaction with 5 steps
1: sodium hydroxide; lithium aluminum hydride / tetrahydrofuran; water
2: thionyl chloride; sodium hydrogencarbonate / dichloromethane
3: NaCN / water; dimethyl sulfoxide
4: aqueous KOH
5: sodium hydroxide
View Scheme
1-(2H-1,3-benzodioxol-5-yl)cyclopropane-1-carboxylic acid
862574-89-8

1-(2H-1,3-benzodioxol-5-yl)cyclopropane-1-carboxylic acid

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: thionyl chloride / 0 - 20 °C
2: phosphorus pentachloride / toluene / 80 °C
3: triethylamine tris(hydrogen fluoride) / 48 h / 20 °C
4: sodium hydroxide; methanol / 20 h / 20 °C
View Scheme
methyl 1-(2H-1,3-benzodioxol-5-yl)cyclopropane-1-carboxylate

methyl 1-(2H-1,3-benzodioxol-5-yl)cyclopropane-1-carboxylate

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: phosphorus pentachloride / toluene / 80 °C
2: triethylamine tris(hydrogen fluoride) / 48 h / 20 °C
3: sodium hydroxide; methanol / 20 h / 20 °C
View Scheme
methyl 1-(3,4-dimethoxyphenyl)cyclopropane-1-carboxylate

methyl 1-(3,4-dimethoxyphenyl)cyclopropane-1-carboxylate

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: boron tribromide / dichloromethane / 1 h / -20 - -10 °C / Inert atmosphere
2: potassium carbonate; tetrabutylammomium bromide / dimethyl sulfoxide / 100 °C / Autoclave
3: sodium hydroxide / 2 h / 85 °C
View Scheme
(3,4-Dimethoxyphenyl)acetic acid
93-40-3

(3,4-Dimethoxyphenyl)acetic acid

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1.1: 1,1'-carbonyldiimidazole / dichloromethane / 1 h / 20 °C
1.2: 1 h / 20 °C
2.1: potassium carbonate / tetrahydrofuran / 2 h / 40 °C
3.1: potassium tert-butylate / N,N-dimethyl-formamide / 0.75 h / 20 °C / Inert atmosphere
3.2: 1 h / 35 - 45 °C / Inert atmosphere
4.1: boron tribromide / dichloromethane / 1 h / -20 - -10 °C / Inert atmosphere
5.1: potassium carbonate; tetrabutylammomium bromide / dimethyl sulfoxide / 100 °C / Autoclave
6.1: sodium hydroxide / 2 h / 85 °C
View Scheme
methyl (3,4-dimethoxyphenyl)acetate
15964-79-1

methyl (3,4-dimethoxyphenyl)acetate

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: potassium carbonate / tetrahydrofuran / 2 h / 40 °C
2.1: potassium tert-butylate / N,N-dimethyl-formamide / 0.75 h / 20 °C / Inert atmosphere
2.2: 1 h / 35 - 45 °C / Inert atmosphere
3.1: boron tribromide / dichloromethane / 1 h / -20 - -10 °C / Inert atmosphere
4.1: potassium carbonate; tetrabutylammomium bromide / dimethyl sulfoxide / 100 °C / Autoclave
5.1: sodium hydroxide / 2 h / 85 °C
View Scheme
3,4-dimethoxybenzeneacrylic acid methyl ester
459453-60-2

3,4-dimethoxybenzeneacrylic acid methyl ester

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: potassium tert-butylate / N,N-dimethyl-formamide / 0.75 h / 20 °C / Inert atmosphere
1.2: 1 h / 35 - 45 °C / Inert atmosphere
2.1: boron tribromide / dichloromethane / 1 h / -20 - -10 °C / Inert atmosphere
3.1: potassium carbonate; tetrabutylammomium bromide / dimethyl sulfoxide / 100 °C / Autoclave
4.1: sodium hydroxide / 2 h / 85 °C
View Scheme
ethyl 4-(benzyloxy)-2-(2,2-difluorobenzo[D] [1,3]dioxol-5-yl)-2-hydroxybutyrate

ethyl 4-(benzyloxy)-2-(2,2-difluorobenzo[D] [1,3]dioxol-5-yl)-2-hydroxybutyrate

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: toluene-4-sulfonic acid / toluene / Reflux
2: palladium 10% on activated carbon / ethanol / 46 - 60 °C / 3750.38 - 4500.45 Torr / Inert atmosphere; Autoclave
3: phosphorus tribromide / dichloromethane / 10 - 20 °C
4: potassium carbonate / N,N-dimethyl-formamide / 100 - 120 °C
5: sodium hydroxide / methanol / 2 h / 10 - 30 °C
View Scheme
ethyl 4-(benzyloxy)-2-(2,2-difluorobenzo[D] [1,3]dioxol-5-yl)-2-butenoate

ethyl 4-(benzyloxy)-2-(2,2-difluorobenzo[D] [1,3]dioxol-5-yl)-2-butenoate

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: palladium 10% on activated carbon / ethanol / 46 - 60 °C / 3750.38 - 4500.45 Torr / Inert atmosphere; Autoclave
2: phosphorus tribromide / dichloromethane / 10 - 20 °C
3: potassium carbonate / N,N-dimethyl-formamide / 100 - 120 °C
4: sodium hydroxide / methanol / 2 h / 10 - 30 °C
View Scheme
ethyl 2-(2,2-difluorobenzo[D] [1,3]dioxol-5-yl)-4-hydroxybutyrate

ethyl 2-(2,2-difluorobenzo[D] [1,3]dioxol-5-yl)-4-hydroxybutyrate

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: phosphorus tribromide / dichloromethane / 10 - 20 °C
2: potassium carbonate / N,N-dimethyl-formamide / 100 - 120 °C
3: sodium hydroxide / methanol / 2 h / 10 - 30 °C
View Scheme
ethyl 2-(2,2-difluorobenzo[D] [1,3]dioxol-5-yl)glyoxylate

ethyl 2-(2,2-difluorobenzo[D] [1,3]dioxol-5-yl)glyoxylate

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: tetrahydrofuran / 1 h / 10 - 30 °C
2: toluene-4-sulfonic acid / toluene / Reflux
3: palladium 10% on activated carbon / ethanol / 46 - 60 °C / 3750.38 - 4500.45 Torr / Inert atmosphere; Autoclave
4: phosphorus tribromide / dichloromethane / 10 - 20 °C
5: potassium carbonate / N,N-dimethyl-formamide / 100 - 120 °C
6: sodium hydroxide / methanol / 2 h / 10 - 30 °C
View Scheme
2,2-difluoro-1,3-benzodioxole
1583-59-1

2,2-difluoro-1,3-benzodioxole

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 7 steps
1: aluminum (III) chloride / dichloromethane / 1 h / 0 - 10 °C
2: tetrahydrofuran / 1 h / 10 - 30 °C
3: toluene-4-sulfonic acid / toluene / Reflux
4: palladium 10% on activated carbon / ethanol / 46 - 60 °C / 3750.38 - 4500.45 Torr / Inert atmosphere; Autoclave
5: phosphorus tribromide / dichloromethane / 10 - 20 °C
6: potassium carbonate / N,N-dimethyl-formamide / 100 - 120 °C
7: sodium hydroxide / methanol / 2 h / 10 - 30 °C
View Scheme
2,2-difluoro-5-(2-methylcyclobut-1-en-1-yl)benzo[d][1,3]dioxole

2,2-difluoro-5-(2-methylcyclobut-1-en-1-yl)benzo[d][1,3]dioxole

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 0.17 h / Inert atmosphere
2: boron trifluoride diethyl etherate / diethyl ether / 0.17 h / Inert atmosphere
3: N-benzyl-N,N,N-triethylammonium chloride; sodium hydroxide / dichloromethane; tetrachloromethane / 16 h / 20 °C / Inert atmosphere
View Scheme
1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

1-(2,2-difluoro-2H-1,3-benzodioxol-5-yl)cyclopropane carboxylic acid chloride
1004294-65-8

1-(2,2-difluoro-2H-1,3-benzodioxol-5-yl)cyclopropane carboxylic acid chloride

Conditions
ConditionsYield
With thionyl chloride; N,N-dimethyl-formamide for 1h;100%
With thionyl chloride In toluene at 65℃; for 3h;99%
With thionyl chloride In N,N-dimethyl-formamide at 20℃; for 2h;83%
1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

2-(2-chlorophenyl)chroman-4-ylamine hydrochloride

2-(2-chlorophenyl)chroman-4-ylamine hydrochloride

N-[2-(2-chlorophenyl)-3,4-dihydro-2H-chromen-4-yl]-1-(2,2-difluoro-1,3-benzodioxol-5-yl)cyclopropanecarboxamide

N-[2-(2-chlorophenyl)-3,4-dihydro-2H-chromen-4-yl]-1-(2,2-difluoro-1,3-benzodioxol-5-yl)cyclopropanecarboxamide

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine; HATU In N,N-dimethyl acetamide at 100℃; Flow reactor;99%
1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid
862574-88-7

1-(2,2-difluorobenzo[1,3]dioxol-5-yl)cyclopropane-1-carboxylic acid

tert-butyl 5'-amino-2'-methyl-[1,1'-biphenyl]-3-carboxylate

tert-butyl 5'-amino-2'-methyl-[1,1'-biphenyl]-3-carboxylate

tert-butyl 5'-(1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropane-1-carboxamido)-2'-methyl-[1,1'-biphenyl]-3-carboxylate

tert-butyl 5'-(1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropane-1-carboxamido)-2'-methyl-[1,1'-biphenyl]-3-carboxylate

Conditions
ConditionsYield
With triethylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In N,N-dimethyl-formamide at 20℃; for 24h; Inert atmosphere;99%

862574-88-7Relevant academic research and scientific papers

Pharmaceutical compositions for the treatment of cystic fibrosis transmembrane conductance regulator mediated diseases

-

, (2021/04/21)

The present invention features compositions comprising a plurality of therapeutic agents wherein the presence of one therapeutic agent enhances the properties of at least one other therapeutic agent. In one embodiment, the therapeutic agents are cystic fibrosis transmembrane conductance regulators (CFTR) such as a CFTR corrector or CFTR potentiator for the treatment of CFTR mediated diseases such as cystic fibrosis. Methods and kits thereof are also disclosed.

METHODS OF TREATMENT FOR CYSTIC FIBROSIS

-

, (2020/06/05)

This application describes methods of treating cystic fibrosis or a CFTR mediated disease comprising administering Compound I or a pharmaceutically acceptable salt thereof. (I) The application also describes pharmaceutical compositions comprising Compound I or a pharmaceutically acceptable salt thereof and optionally comprising one or more additional CFTR modulating agents.

METHODS OF TREATMENT FOR CYSTIC FIBROSIS

-

, (2019/02/06)

Compound I of the formula (I) and/or pharmaceutically acceptable salt(s) of Compound I comprised in a pharmaceutical composition and methods of using the same to treat cystic fibrosis.

Oxidative Ring Contraction of Cyclobutenes: General Approach to Cyclopropylketones including Mechanistic Insights

Baumann, Andreas N.,Schüppel, Franziska,Eisold, Michael,Kreppel, Andrea,De Vivie-Riedle, Regina,Didier, Dorian

, p. 4905 - 4921 (2018/05/17)

An original oxidative ring contraction of easily accessible cyclobutene derivatives for the selective formation of cyclopropylketones (CPKs) under atmospheric conditions is reported. Comprehensive mechanistic studies are proposed to support this novel, yet unusual, rearrangement. Insights into the mechanism ultimately led to simplification and generalization of the ring contraction of cyclobutenes using mCPBA as an oxidant. This unique and functional group tolerant transformation proceeds under mild conditions at room temperature, providing access to a new library of polyfunctionalized motifs. With CPKs being attractive and privileged pharmacophores, the elaboration of such a simple and straightforward strategy represents a highly valuable tool for drug discovery and medicinal chemistry. Additionally, the described method was employed to generate a pool of bioactive substances and key precursors in a minimum number of steps.

MODULATOR OF CYSTIC FIBROSIS TRANSMEMBRANE CONDUCTANCE REGULATOR, PHARMACEUTICAL COMPOSITIONS, METHODS OF TREATMENT, AND PROCESS FOR MAKING THE MODULATOR

-

, (2018/06/30)

Compounds of Formula (I) pharmaceutically acceptable salts thereof, deuterated derivatives of any of the foregoing, and metabolites of any of the foregoing are disclosed. Pharmaceutical compositions comprising the same, methods of treating cystic fibrosis using the same, and methods for making the same are also disclosed. Also disclosed are solid state forms of Compound 1 and salts and solvates thereof.

Synthetic method of key intermediate of lumacaftor

-

, (2018/04/26)

The invention relates to a synthetic method of the key intermediate 1-(2, 2-difluorobenzo[D][1, 3]dioxole-5) cyclopropanecarboxylic acid of lumacaftor. 2, 2-difluoro-1, 3-benzodioxole is used as a starting material, and the Friedel-Crafts reaction, the Grignard reaction, dehydration, catalytic hydrogenation, a substitution reaction, a cyclization reaction and a hydrolysis reaction are carried outto obtain 1-(2, 2-difluorobenzo[D][1, 3]dioxole-5) cyclopropanecarboxylic acid. The method has no demanding reaction conditions, the method is simple and easy to operate, used reagents are easy to obtain, use of the hypertoxic material sodium cyanide is avoided, the reaction yield is improved, and the method is suitable for industrial production.

1 - (2, 2 - Difluorobenzene and [d] [1, 3] dioxo heterocyclic pentene - 5 - yl) cyclopropanecarboxylic acid synthetic method and intermediate

-

, (2018/04/02)

The invention belongs to the field of chemical synthesis of drugs, particularly relates to a synthetic method of 1-(2,2-difluoro-benzo[d][1,3]) dioxole-5-yl) cyclopropanecarboxylic acid and an intermediate and aims to provide a synthesis method of a compound (1). The method comprises steps as follows: a, a compound (4) and boron tribromide react, and a compound (3) is synthesized; b, the compound (3) and difluorodibromomethane have a ring closing reaction in the presence of a phase-transfer catalyst, and a compound (2) is synthesized; c, the compound (2) is hydrolyzed, and the compound (1) is synthesized. According to the synthetic method and the intermediate, one novel compound (4) is provided, one novel preparation method of the compound (1) is obtained, with the adoption of the method, not only can the overall yield of the reaction be increased, but also expensive reaction raw materials can be avoided, and the reaction cost is reduced to the great extent; besides, according to the method, utilization of a palladium catalyst and a dangerous sodium cyanide reagent can further be avoided, the safety of pharmaceutical production is guaranteed, and the method is applicable to industrial production.

Synthesis and biological evaluation of novel thiazole- VX-809 hybrid derivatives as F508del correctors by QSAR-based filtering tools

Liessi, Nara,Cichero, Elena,Pesce, Emanuela,Arkel, Maria,Salis, Annalisa,Tomati, Valeria,Paccagnella, Matteo,Damonte, Gianluca,Tasso, Bruno,Galietta, Luis J.V.,Pedemonte, Nicoletta,Fossa, Paola,Millo, Enrico

, p. 179 - 200 (2017/12/28)

The most common CF mutation, F508del, impairs the processing and gating of CFTR protein. This deletion results in the improper folding of the protein and its degradation before it reaches the plasma membrane of epithelial cells. Present correctors, like VX809 only induce a partial rescue of the mutant protein. Our previous studies reported a class of compounds, called aminoarylthiazoles (AATs), featuring an interesting activity as correctors. Some of them show additive effect with VX809 indicating a different mechanism of action. In an attempt to construct more interesting molecules, it was thought to generate chemically hybrid compounds, blending a portion of VX809 merged to the thiazole scaffold. This approach was guided by the development of QSAR analyses, which were performed based on the F508del correctors so far disclosed in the literature. This strategy was aimed at exploring the key requirements turning in the corrector ability of the collected derivatives and allowed us to derive a predictive model guiding for the synthesis of novel hybrids as promising correctors. The new molecules were tested in functional and biochemical assays on bronchial CFBE41o-cells expressing F508del-CFTR showing a promising corrector activity.

PHARMACEUTICAL COMPOSITIONS OF 3-(6-(1-(2,2-DIFLUOROBENZO[D][1,3]DIOXOL-5-YL)CYCLOPROPANECARBOXAMIDO)-3-METHYLPYRIDIN-2-YL)BENZOIC ACID AND ADMINISTRATION THEREOF

-

, (2019/03/09)

A pharmaceutical composition comprising Compound 1,(3-(6-(1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl) cyclopropanecarboxamido)-3-methylpyridin-2-yl)benzoic acid), and at least one excipient selected from: a filler, a diluent, a disintegrant, a surfactant, a binder, a glidant and a lubricant, the composition being suitable for oral administration to a patient in need thereof to treat a CFTR mediated disease such as Cystic Fibrosis. Methods for treating a patient in need thereof include administering an oral pharmaceutical formulation of Compound 1 to the patient.

Method for preparing benzo[1,3-d] dioxole and intermediate of benzo[1,3-d] dioxole

-

Paragraph 0056; 0057; 0058, (2017/08/29)

The invention relates to the field of medicinal chemical synthesis, and discloses a method for preparing benzo[1,3-d] dioxole and an intermediate of benzo[1,3-d] dioxole. The method comprises the following steps: performing three steps of reactions of chloro-substitution, fluorination and deprotection on a compound of formula (4) as shown in the specification so as to prepare a compound of formula (1) as shown in the specification, and in the formulae, R is a carboxyl protection group. By adopting the method, the problems that in the prior art, the yield of benzo[1,3-d] dioxole is low and the reaction operation is not safe can be solved, the compound of the formula (4) is adopted as a raw material which is directly introduced into a three-membered ring structure, so that a dangerous sodium cyanide reagent is not used, and moreover, a reaction route is shortened, the overall yield of the reaction can be greatly increased, and the method is applicable to industrial production.

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