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87-41-2 1(3H)-Isobenzofuranone
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Phthalide;1,3-Dihydrobenzo[c]furan-2-one;o-HydroxyMethylbenzoic acid lactone;1-Phthalanone;1(3H)-Isobenzofuranone
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87-41-2 Usage

Purification Methods

Crystallise phthalide from water (75mL/g) and dry it in air on filter paper. [Beilstein 17/10 V 7.]

Definition

ChEBI: A gamma-lactone that is 1,3-dihydro-2-benzofuran in which the hydrogens at position 1 are replaced by an oxo group.

Chemical Properties

WHITE TO LIGHT BEIGE CRYSTALLINE POWDER
InChI:InChI=1/C8H6O2/c9-8-7-4-2-1-3-6(7)5-10-8/h1-4H,5H2

87-41-2 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
Aldrich (P39605)  Phthalide  98% 87-41-2 P39605-500G 1,215.63CNY Detail
Aldrich (P39605)  Phthalide  98% 87-41-2 P39605-100G 335.79CNY Detail
Alfa Aesar (A15516)  Phthalide, 98+%    87-41-2 2500g 4784.0CNY Detail
Alfa Aesar (A15516)  Phthalide, 98+%    87-41-2 500g 1095.0CNY Detail
Alfa Aesar (A15516)  Phthalide, 98+%    87-41-2 100g 274.0CNY Detail

87-41-2SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-benzofuran-1(3H)-one

1.2 Other means of identification

Product number -
Other names Rabcide

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Food additives -> Flavoring Agents
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:87-41-2 SDS

87-41-2Synthetic route

phthalyl alcohol
612-14-6

phthalyl alcohol

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
With (CH3)5C5*Ir(-OCH2C(C6H5)2NH-) In acetone at 20℃; for 4h;100%
With sodium bromate; hydrogen bromide In acetic acid at 35℃; for 5h;99%
With periodic acid; pyridinium chlorochromate In acetonitrile at 0 - 20℃; for 2h;99%
o-phthalic dicarboxaldehyde
643-79-8

o-phthalic dicarboxaldehyde

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
With calcium oxide In benzene at 39.84℃; for 0.25h; Tishchenko reaction;100%
[La2(tBu2pz)6] In benzene-d6 at 21℃; Tishchenko reaction;100%
With [(ImDippN)Th{N(SiMe3)2}3] In benzene-d6 at 20℃; for 6h;100%
carbon monoxide
201230-82-2

carbon monoxide

2-iodobenzyl alcohol
5159-41-1

2-iodobenzyl alcohol

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
With potassium carbonate; bis-triphenylphosphine-palladium(II) chloride In N,N-dimethyl-formamide at 60℃; under 760 Torr; for 72h;100%
With N-ethyl-N,N-diisopropylamine; C50H42O2P2Pd2; triphenylphosphine In toluene at 60℃; for 1.66667h; Conversion of starting material;100%
With triethylamine; 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene; palladium dichloride In toluene at 80℃; under 760.051 Torr; for 4h;97%
o-xylene
95-47-6

o-xylene

A

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

B

phthalic anhydride
85-44-9

phthalic anhydride

Conditions
ConditionsYield
With oxygen at 340 - 360℃; Product distribution / selectivity;A 0.01%
B 100%
With oxygen at 340 - 360℃;A 0.1%
B 100%
With oxygen at 340 - 360℃;A 0.03%
B 100%
Reaxys ID: 11463934

Reaxys ID: 11463934

A

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

B

phthalic anhydride
85-44-9

phthalic anhydride

C

[1,4]naphthoquinone
130-15-4

[1,4]naphthoquinone

Conditions
ConditionsYield
With oxygen at 340 - 360℃; Product distribution / selectivity;A 0.01%
B 100%
C 0.02%
With oxygen at 340 - 360℃;A 0.03%
B 100%
C 0.05%
With oxygen at 340 - 360℃;A 0.01%
B 100%
C 0.01%
Reaxys ID: 11463934

Reaxys ID: 11463934

A

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

B

phthalic anhydride
85-44-9

phthalic anhydride

Conditions
ConditionsYield
With oxygen at 340 - 360℃;A 0.01%
B 100%
With oxygen at 340 - 360℃;A 0.01%
B 100%
Reaxys ID: 11464679

Reaxys ID: 11464679

A

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

B

phthalic anhydride
85-44-9

phthalic anhydride

C

[1,4]naphthoquinone
130-15-4

[1,4]naphthoquinone

Conditions
ConditionsYield
With oxygen at 354 - 357℃;A 0.2%
B 100%
C 0.15%
Phthaloyl dichloride
88-95-9

Phthaloyl dichloride

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
With triethylsilane; iron(III)-acetylacetonate at 60℃; for 0.666667h;99%
With triethylsilane; iron(III)-acetylacetonate at 60℃; for 0.666667h; other catalysts: Co(acac)2, Ni(acac)2; same reaction of iso- and terephthaloyl chloride;99%
With tricyclohexylborane at 300℃; for 2h;11.5%
1,3-dihydroisobenzofuran
496-14-0

1,3-dihydroisobenzofuran

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
With chromium(VI) oxide; periodic acid In acetonitrile at 20℃; for 0.25h;99%
With oxygen In dimethyl sulfoxide at 20℃; under 760.051 Torr; for 24h; Irradiation;99%
With tert.-butylhydroperoxide; 0.5C34H18N16(4-)*2H2O*2Cu(1+)*C3H7NO In water at 20℃; for 6h; Reagent/catalyst; Time; Sonication;97%
phthalic anhydride
85-44-9

phthalic anhydride

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
With Li(1+)*C12H28AlO3(1-) In tetrahydrofuran; hexane at -78℃; for 1h;98%
With lithium borohydride In tetrahydrofuran for 0.25h;91%
With 4-butanolide; cyclohexane; hydrogen at 180℃; under 30003 Torr; for 4h; Catalytic behavior; Reagent/catalyst; Time; Autoclave;89.6%
1,3-dihydroisobenzofuran
496-14-0

1,3-dihydroisobenzofuran

A

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

B

1,3-dihydroisobenzofuran-1-ol
59868-79-0

1,3-dihydroisobenzofuran-1-ol

Conditions
ConditionsYield
With cobalt(III) acetylacetonate; oxygen In ethyl acetate at 70℃; for 24h;A 98%
B 1%
7,7a-dihydro-3H-3a,6-epoxyisobenzofuran-1(6H)-one

7,7a-dihydro-3H-3a,6-epoxyisobenzofuran-1(6H)-one

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
With methanesulfonic acid; acetic anhydride at 80℃; Temperature; Reagent/catalyst;98%
With sulfuric acid; acetic anhydride at 0 - 80℃; for 1h;
o-carboxybenzaldehyde
119-67-5

o-carboxybenzaldehyde

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
With (dipyridylamine)Cp*IrOSO3; hydrogen In water at 130℃; under 3750.38 Torr; for 32h;97%
With formic acid; C20H29ClIrN4(1+)*Cl(1-) In water at 80℃; for 2h; chemoselective reaction;91%
With sodium tetrahydroborate; nickel(II) phthalocyanine In PEG-400 at 20℃; for 0.333333h; chemoselective reaction;87%
With iodine; phosphorous acid In 1,2-dichloro-ethane at 60℃; for 13h; Inert atmosphere; Schlenk technique;86%
Multi-step reaction with 2 steps
1: fluorobenzene / 0.5 h / 46 °C / Microwave irradiation
2: potassium carbonate / fluorobenzene / 0.17 h / 155 °C
View Scheme
2-iodobenzyl alcohol
5159-41-1

2-iodobenzyl alcohol

terephthalaldehyde,
623-27-8

terephthalaldehyde,

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
Stage #1: terephthalaldehyde, With palladium 10% on activated carbon; sodium carbonate In isopropyl alcohol at 110℃; for 24h; Inert atmosphere;
Stage #2: 2-iodobenzyl alcohol With triphenylphosphine In 1-methyl-pyrrolidin-2-one; isopropyl alcohol at 100℃; for 24h; Catalytic behavior; Solvent; Temperature; Inert atmosphere;
97%
Stage #1: terephthalaldehyde, With palladium 10% on activated carbon; sodium carbonate In isopropyl alcohol at 120℃; for 24h; Inert atmosphere;
Stage #2: 2-iodobenzyl alcohol With triphenylphosphine In 1-methyl-pyrrolidin-2-one at 100℃; for 24h; Inert atmosphere;
85%
2-hydroxymethyl-benzoic acid hydrazide
51707-35-8

2-hydroxymethyl-benzoic acid hydrazide

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
With t-butyldimethylsiyl triflate; N,N-dimethyl-formamide at 20℃; for 20h;97%
2-(bromomethyl)benzoic acid
7115-89-1

2-(bromomethyl)benzoic acid

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
Stage #1: 2-(bromomethyl)benzoic acid With 1,8-diazabicyclo[5.4.0]undec-7-ene In acetone for 0.166667h;
Stage #2: With methyl iodide In acetone at 20℃; for 4h;
96%
With cesium fluoride In acetonitrile for 10h; Heating;80%
With sodium hydroxide anschl. Ansaeuern;
In gas at 380℃; Mechanism; Thermodynamic data; Ea(excit.);
benzo[c]thiophene-1,3-dione
5698-59-9

benzo[c]thiophene-1,3-dione

A

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

B

3-hydroxy-2-thiophthalide

3-hydroxy-2-thiophthalide

Conditions
ConditionsYield
With sodium tetrahydroborate In tetrahydrofuran at 0 - 20℃; for 1.5h;A n/a
B 96%
carbon monoxide
201230-82-2

carbon monoxide

o-bromobenzyl alcohol
18982-54-2

o-bromobenzyl alcohol

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
With tetrabutylammomium bromide; dicobalt octacarbonyl In sodium hydroxide; benzene at 65℃; for 2.5h; Irradiation;95%
With potassium carbonate; F-CH2Co(CO)4 In methanol at 25℃;84%
With di-μ-iodobis(tri-t-butylphosphino)dipalladium(l); triethylamine In toluene at 100℃; under 900.09 Torr; for 12h;82 %Chromat.
styrene oxide
96-09-3

styrene oxide

o-bromobenzyl alcohol
18982-54-2

o-bromobenzyl alcohol

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
With 5%-palladium/activated carbon; sodium fluoride In 1,4-dioxane at 150℃; for 24h;94%
styrene
292638-84-7

styrene

o-bromobenzyl alcohol
18982-54-2

o-bromobenzyl alcohol

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
With 5%-palladium/activated carbon; sodium fluoride; 3-chloro-benzenecarboperoxoic acid In 1,4-dioxane at 150℃; for 24h;94%
4,7-dihyrophthalide
21483-54-5

4,7-dihyrophthalide

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In toluene for 14h; Ambient temperature;92%
ethanol
64-17-5

ethanol

o-bromobenzyl alcohol
18982-54-2

o-bromobenzyl alcohol

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
With dmap; palladium diacetate; 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene In toluene at 90℃; for 0.5h; Microwave irradiation;92%
phthalyl alcohol
612-14-6

phthalyl alcohol

A

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

B

butanedial
638-37-9

butanedial

Conditions
ConditionsYield
With 1-methyl-1H-imidazole; [2,2]bipyridinyl; tetrakis(acetonitrile)copper(I) trifluoromethanesulfonate; 9-azabicyclo<3.3.1>nonane-N-oxyl In acetonitrile at 22℃; for 2h;A 92%
B 8%
Diethyl phthalate
84-66-2

Diethyl phthalate

A

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

B

phthalyl alcohol
612-14-6

phthalyl alcohol

Conditions
ConditionsYield
With sodium tetrahydroborate In methanol; tert-butyl alcohol Heating;A 9%
B 91%
With sodium tetrahydroborate In methanol; tert-butyl alcohol Heating;A 8%
B 91%
With diisobutylaluminium hydride In dichloromethane; toluene at -30 - 20℃; for 1h; Inert atmosphere; regioselective reaction;A 68%
B 10%
With diisobutylaluminium hydride In dichloromethane; toluene at -30 - 20℃; for 1h; Temperature; Inert atmosphere; regioselective reaction;A 30%
B 60%
2-(hydroxymethyl)benzoic acid
612-20-4

2-(hydroxymethyl)benzoic acid

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
With oxygen In water at 80℃; for 12h; Reagent/catalyst; Sealed tube;90%
With copper(II) oxide; zinc In water at 250℃; for 2h;17%
With water
2-[(Diisopropoxy-methyl-silanyl)-methyl]-benzoic acid methyl ester
85719-69-3

2-[(Diisopropoxy-methyl-silanyl)-methyl]-benzoic acid methyl ester

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
With peracetic acid; potassium fluoride In N,N-dimethyl-formamide for 18h; Ambient temperature;90%
benzoic acid
65-85-0

benzoic acid

1,2-dibromomethane
74-95-3

1,2-dibromomethane

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
With dipotassium hydrogenphosphate; palladium diacetate at 140℃; for 36h;90%
With dipotassium hydrogenphosphate; palladium diacetate at 130℃; for 36h;87%
With palladium diacetate for 36h; Alkaline conditions; Heating;
(2-methoxyphenyl)methanol
612-16-8

(2-methoxyphenyl)methanol

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
With tungsten(VI) oxide monohydrate; dihydrogen peroxide In water; tert-butyl alcohol at 80℃; for 24h;90%
3-chloro-1(3H)-isobenzofuranone
6295-21-2

3-chloro-1(3H)-isobenzofuranone

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

Conditions
ConditionsYield
With triethylamine; nickel In tetrahydrofuran89%
With hydrogen In Pt on charcoal; 5,5-dimethyl-1,3-cyclohexadiene
With sodium acetate; palladium In acetic acid
o-phthalic dicarboxaldehyde
643-79-8

o-phthalic dicarboxaldehyde

phenylboronic acid
98-80-6

phenylboronic acid

A

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

B

3-phenylphthalide
5398-11-8

3-phenylphthalide

Conditions
ConditionsYield
With potassium carbonate; 1,2-bis-(diphenylphosphino)ethane; cobalt(II) iodide In tetrahydrofuran at 80℃; for 12h; Inert atmosphere;A 10%
B 89%
With 1,10-Phenanthroline; potassium carbonate; cobalt(II) chloride In acetonitrile at 80℃; for 12h; Inert atmosphere;A 65%
B 36%
2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

methylmagnesium bromide
75-16-1

methylmagnesium bromide

α,α-dimethyl-o-xylene α,α'-diol
55549-01-4

α,α-dimethyl-o-xylene α,α'-diol

Conditions
ConditionsYield
at -78 - 20℃;100%
In tetrahydrofuran; diethyl ether at 30℃; for 12.5h;88%
unter Wasserabgabe entsteht 1.1-Dimethyl-phthalan;
2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

methylamine
74-89-5

methylamine

2-methylisoindolin-1-one
5342-91-6

2-methylisoindolin-1-one

Conditions
ConditionsYield
In water at 220℃; under 114000 Torr; for 4h;100%
With ethanol at 220℃;
In 5,5-dimethyl-1,3-cyclohexadiene
2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

phthalyl alcohol
612-14-6

phthalyl alcohol

Conditions
ConditionsYield
With sodium aluminum tetrahydride In tetrahydrofuran at 0℃; for 0.25h;100%
With dimethyl zinc(II); sodium hydride In tetrahydrofuran at 0℃; for 6h;100%
With lithium aluminium tetrahydride In tetrahydrofuran at 25℃; under 760.051 Torr; for 16h; Inert atmosphere;99%
2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

phenylmethanethiol
100-53-8

phenylmethanethiol

2-<(Benzylthio)methyl>benzoic acid
1218-59-3

2-<(Benzylthio)methyl>benzoic acid

Conditions
ConditionsYield
With sodium hydride In N,N-dimethyl-formamide; mineral oil for 45h; Reflux;100%
With sodium hydride In N,N-dimethyl-formamide for 24h; Heating;99%
58%
With sodium ethanolate In ethanol
methanol
67-56-1

methanol

2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

o-(chloromethyl)benzoic acid methyl ester
34040-62-5

o-(chloromethyl)benzoic acid methyl ester

Conditions
ConditionsYield
Stage #1: 2-benzofuran-1(3H)-one With boron trifluoride diethyl etherate; N-benzyl-N,N,N-triethylammonium chloride In xylene at 100℃;
Stage #2: With thionyl chloride In xylene at 100 - 132℃; for 3h;
Stage #3: methanol at 50 - 60℃; for 2h;
100%
Stage #1: 2-benzofuran-1(3H)-one With chloro(triphenyl)phosphonium chloride at 180℃; for 2h;
Stage #2: methanol With pyridine for 1h;
With pyridine; dichlorotriphenylphosphorane at 180℃;
2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

lithium 3-oxo-1,3-dihydroisobenzofuran-1-carboxylate

lithium 3-oxo-1,3-dihydroisobenzofuran-1-carboxylate

Conditions
ConditionsYield
In tetrahydrofuran; hexane100%
2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

2,6-difluorobenzaldehyde
437-81-0

2,6-difluorobenzaldehyde

2-(2,6-difluorophenyl)-1,3-dioxoindane

2-(2,6-difluorophenyl)-1,3-dioxoindane

Conditions
ConditionsYield
With sodium methylate In methanol for 2h; Reflux;100%
2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

methylamine
74-89-5

methylamine

2-(hydroxymethyl)-N-methylbenzamide
39976-03-9

2-(hydroxymethyl)-N-methylbenzamide

Conditions
ConditionsYield
In methanol for 36h;99.5%
2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

p-methoxybenzyl chloride
824-94-2

p-methoxybenzyl chloride

4-methoxybenzyl 2-(hydroxymethyl)benzoate

4-methoxybenzyl 2-(hydroxymethyl)benzoate

Conditions
ConditionsYield
Stage #1: 2-benzofuran-1(3H)-one With sodium hydroxide In water at 20℃; for 3h;
Stage #2: p-methoxybenzyl chloride In N,N-dimethyl-formamide at 80℃; for 1h;
99%
Stage #1: 2-benzofuran-1(3H)-one With water; sodium hydroxide In tetrahydrofuran at 20℃; for 3h;
Stage #2: p-methoxybenzyl chloride In N,N-dimethyl-formamide at 80℃; for 1h;
2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane
25015-63-8

4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane

1,2-bis(((4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)oxy)methyl)benzene

1,2-bis(((4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)oxy)methyl)benzene

Conditions
ConditionsYield
With ToMMgMe at 24.84℃; for 1h;99%
With C12H36MgN2Si4 In neat (no solvent) at 20℃; for 0.25h; Catalytic behavior; Reagent/catalyst; Solvent; Inert atmosphere; Schlenk technique;99%
With C42H50Mg2N4 In neat (no solvent) at 25℃; for 1h; Glovebox; Schlenk technique; Inert atmosphere;99 %Spectr.
2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

tert-Butoxybis(dimethylamino)methane
5815-08-7

tert-Butoxybis(dimethylamino)methane

3-isobenzofuran-1(3H)-one
89968-08-1

3-isobenzofuran-1(3H)-one

Conditions
ConditionsYield
at 135℃; for 0.5h;98%
2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

tetra(n-butyl)ammonium hydroxide
2052-49-5

tetra(n-butyl)ammonium hydroxide

tetra-n-butylammonium 2-(hydroxymethyl)benzoate
93612-81-8

tetra-n-butylammonium 2-(hydroxymethyl)benzoate

Conditions
ConditionsYield
for 0.5h;98%
With water for 1.5h; Heating;39 g
In water for 1.5h; Heating;
2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

butyraldehyde
123-72-8

butyraldehyde

3-hydroxybutyl phthalide
168288-19-5

3-hydroxybutyl phthalide

Conditions
ConditionsYield
Stage #1: 2-benzofuran-1(3H)-one With lithium diisopropyl amide In tetrahydrofuran at -78℃;
Stage #2: butyraldehyde In tetrahydrofuran
98%
With lithium diisopropyl amide 1.) THF, -78 deg C, 10 min, 2.) THF, -78 deg C, 1-2 h; Yield given. Multistep reaction;
2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

N-butylamine
109-73-9

N-butylamine

N-butyl-2-hydroxymethylbenzamide
39976-06-2

N-butyl-2-hydroxymethylbenzamide

Conditions
ConditionsYield
In neat (no solvent) at 40℃; for 3h;98%
2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

α-carboxy-α'-hydroxy-o-xylene sodium salt

α-carboxy-α'-hydroxy-o-xylene sodium salt

Conditions
ConditionsYield
With sodium hydroxide In water for 2h; Reflux;98%
2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

3-Bromophthalide
6940-49-4

3-Bromophthalide

Conditions
ConditionsYield
With N-Bromosuccinimide In tetrachloromethane97%
With N-Bromosuccinimide In tetrachloromethane for 0.666667h; Bromination; Irradiation;94%
With N-Bromosuccinimide In tetrachloromethane for 0.666667h; Irradiation;94%
2-benzofuran-1(3H)-one
87-41-2

2-benzofuran-1(3H)-one

1,3-dihydroisobenzofuran-1-ol
59868-79-0

1,3-dihydroisobenzofuran-1-ol

Conditions
ConditionsYield
With diisobutylaluminium hydride In hexane; dichloromethane at -78℃; for 1.5h;97%
With diisobutylaluminium hydride91%
With diisobutylaluminium hydride In dichloromethane at -78℃;70%

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