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2196-18-1

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2196-18-1 Usage

General Description

α,4'-Dihydroxy-3'-methoxypropiophenone, also known as dihydroxypropiophenone, is a naturally occurring chemical compound found in certain plant species. It is a phenolic compound with two hydroxy groups and one methoxy group attached to a propiophenone backbone. This chemical has been studied for its potential antioxidant, anti-inflammatory, and anti-cancer properties. It may also have potential as a natural preservative in food and cosmetic products.α,4'-Dihydroxy-3'-methoxypropiophenone is of interest to researchers for its potential applications in various fields and for its role in the biochemistry and pharmacology of plants.

Check Digit Verification of cas no

The CAS Registry Mumber 2196-18-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,1,9 and 6 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 2196-18:
(6*2)+(5*1)+(4*9)+(3*6)+(2*1)+(1*8)=81
81 % 10 = 1
So 2196-18-1 is a valid CAS Registry Number.
InChI:InChI=1/C10H12O4/c1-14-10-6-7(2-3-9(10)13)8(12)4-5-11/h2-3,6,11,13H,4-5H2,1H3

2196-18-1SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name 3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)propan-1-one

1.2 Other means of identification

Product number -
Other names Propiophenone,3,4'-dihydroxy-3'-methoxy

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:2196-18-1 SDS

2196-18-1Synthetic route

3-chloro-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
7182-42-5

3-chloro-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

Conditions
ConditionsYield
With sodium hydroxide In water at 20 - 65℃; for 1.5h; Reagent/catalyst; Temperature; Solvent; Industrial scale;100%
β-hydroxy-α-(2-methoxyphenoxy)4-hydroxy-3-methoxypropiophenone
22317-34-6

β-hydroxy-α-(2-methoxyphenoxy)4-hydroxy-3-methoxypropiophenone

A

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

B

2-methoxy-phenol
90-05-1

2-methoxy-phenol

Conditions
ConditionsYield
With formic acid; N-ethyl-N,N-diisopropylamine; Lumogen F Orange 240 In acetonitrile at 25℃; for 8h; Reagent/catalyst; UV-irradiation; Inert atmosphere;A 99%
B 96%
With formic acid; N-ethyl-N,N-diisopropylamine In acetonitrile at 20℃; for 24h; Inert atmosphere; Irradiation;A 69%
B 74%
guaiacylglycerol-β-guaiacyl ether
7382-59-4

guaiacylglycerol-β-guaiacyl ether

A

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

B

2-methoxy-phenol
90-05-1

2-methoxy-phenol

C

1-(3-methoxy-4-hydroxyphenyl)ethanone
498-02-2

1-(3-methoxy-4-hydroxyphenyl)ethanone

Conditions
ConditionsYield
With oxygen; rose bengal In acetonitrile at 13℃; Irradiation;A 28 % Chromat.
B 15 % Chromat.
C 30 % Chromat.
3-acetoxy-1-<4-hydroxy-3-methoxy-phenyl>-propanone-(1)

3-acetoxy-1-<4-hydroxy-3-methoxy-phenyl>-propanone-(1)

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

Conditions
ConditionsYield
With water; barium carbonate
3-bromo-1-<4-hydroxy-3-methoxy-phenyl>-propanone-(1)

3-bromo-1-<4-hydroxy-3-methoxy-phenyl>-propanone-(1)

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

Conditions
ConditionsYield
With sodium hydroxide
4-benzyloxy-3-methoxyacetophenone
1835-11-6

4-benzyloxy-3-methoxyacetophenone

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 69 percent / Br2 / CHCl3; CCl4 / 1) 5 deg C, 20 min, 2) 5 deg C -> 40 deg C, 2 h
2: 95 percent / K2CO3 / dimethylformamide / 2 h / 25 °C
3: 1) K2CO3, 2) 1 M NaOH / 1) DMSO, 25 deg C, 10 min, 2) DMSO, H2O, 25 deg C, 1 h
4: 78 percent / NaBH4 / ethanol / 3 h / 5 - 25 °C
5: 28 percent Chromat. / O2, Rose Bengal / acetonitrile / 13 °C / Irradiation
View Scheme
β-hydroxy-α-(2-methoxyphenoxy)4-hydroxy-3-methoxypropiophenone
22317-34-6

β-hydroxy-α-(2-methoxyphenoxy)4-hydroxy-3-methoxypropiophenone

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 78 percent / NaBH4 / ethanol / 3 h / 5 - 25 °C
2: 28 percent Chromat. / O2, Rose Bengal / acetonitrile / 13 °C / Irradiation
View Scheme
3-methoxy-4-benzyloxy-α-bromoacetophenone
1835-12-7

3-methoxy-4-benzyloxy-α-bromoacetophenone

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: 95 percent / K2CO3 / dimethylformamide / 2 h / 25 °C
2: 1) K2CO3, 2) 1 M NaOH / 1) DMSO, 25 deg C, 10 min, 2) DMSO, H2O, 25 deg C, 1 h
3: 78 percent / NaBH4 / ethanol / 3 h / 5 - 25 °C
4: 28 percent Chromat. / O2, Rose Bengal / acetonitrile / 13 °C / Irradiation
View Scheme
1-(4-(benzyloxy)-3-methoxyphenyl)-2-(2-methoxyphenoxy)ethan-1-one
22317-29-9

1-(4-(benzyloxy)-3-methoxyphenyl)-2-(2-methoxyphenoxy)ethan-1-one

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 1) K2CO3, 2) 1 M NaOH / 1) DMSO, 25 deg C, 10 min, 2) DMSO, H2O, 25 deg C, 1 h
2: 78 percent / NaBH4 / ethanol / 3 h / 5 - 25 °C
3: 28 percent Chromat. / O2, Rose Bengal / acetonitrile / 13 °C / Irradiation
View Scheme
guaiacylglycerol-β-guaiacyl ether
7382-59-4

guaiacylglycerol-β-guaiacyl ether

A

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

B

2-methoxy-phenol
90-05-1

2-methoxy-phenol

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: oxygen; N-hydroxyphthalimide / acetone / 30 h / 20 °C / 760.05 Torr / Irradiation
2: N-ethyl-N,N-diisopropylamine; formic acid / acetonitrile / 24 h / 20 °C / Inert atmosphere; Irradiation
View Scheme
pinoresinol
7452-03-1

pinoresinol

A

3,4-Dihydroxybenzoic acid
99-50-3

3,4-Dihydroxybenzoic acid

B

3-methoxy-4-hydroxybenzoic acid
121-34-6

3-methoxy-4-hydroxybenzoic acid

C

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

Conditions
ConditionsYield
With potassium superoxide; sphingobacterium sp. T2 manganese superoxide dismutase In dimethyl sulfoxide for 1h; pH=7.8; Inert atmosphere; Enzymatic reaction;
guaiacylglycerol-β-guaiacyl ether
7382-59-4

guaiacylglycerol-β-guaiacyl ether

A

coniferol
458-35-5

coniferol

B

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

C

1-(4-hydroxy-3-methoxyphenyl)-2-propene-1-one
2983-65-5

1-(4-hydroxy-3-methoxyphenyl)-2-propene-1-one

D

2-methoxy-phenol
90-05-1

2-methoxy-phenol

Conditions
ConditionsYield
With 4ZnS*In2S3 In water; acetonitrile for 20h; Inert atmosphere; UV-irradiation;
1-(4-hydroxyphenyl)-2-(2-methoxyphenoxy)propane-1,3-diol
56122-34-0

1-(4-hydroxyphenyl)-2-(2-methoxyphenoxy)propane-1,3-diol

A

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

B

1-(4-hydroxy-3-methoxyphenyl)-2-propene-1-one
2983-65-5

1-(4-hydroxy-3-methoxyphenyl)-2-propene-1-one

C

2-methoxy-phenol
90-05-1

2-methoxy-phenol

Conditions
ConditionsYield
With 4ZnS*In2S3 In water; acetonitrile for 16h; Inert atmosphere; UV-irradiation;
3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

3-chloro-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
7182-42-5

3-chloro-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

Conditions
ConditionsYield
With hydrogenchloride at 90℃; for 0.5h;96%
3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

3-hydroxy-3-(4-hydroxy-3-methoxyphenyl)-1-propanol
3063-86-3

3-hydroxy-3-(4-hydroxy-3-methoxyphenyl)-1-propanol

Conditions
ConditionsYield
With sodium tetrahydroborate; sodium hydroxide In water at 26℃; for 24h;79%
With lithium aluminium tetrahydride In diethyl ether
3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

acetic anhydride
108-24-7

acetic anhydride

ω-hydroxypropioguaiacone diacetate
107682-24-6

ω-hydroxypropioguaiacone diacetate

Conditions
ConditionsYield
In pyridine for 24h; Ambient temperature;2 mg
3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

3,3-bis(4-hydroxy-3-methoxyphenyl)-1-propanol

3,3-bis(4-hydroxy-3-methoxyphenyl)-1-propanol

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: sodium tetrahydroborate; sodium hydroxide / water / 24 h / 26 °C
2: methanesulfonic acid / water / 22.5 h / 65 °C
View Scheme
3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

coniferol
458-35-5

coniferol

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: sodium tetrahydroborate; sodium hydroxide / water / 24 h / 26 °C
2: triethylamine / isopropyl alcohol / 48 h / 85 - 90 °C
View Scheme
3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

A

C20H32O4Si

C20H32O4Si

B

C20H32O4Si

C20H32O4Si

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: tetra-(n-butyl)ammonium iodide; triphenylphosphine; 2,3-dicyano-5,6-dichloro-p-benzoquinone / dichloromethane / 4 h / 20 °C / Inert atmosphere
1.2: 2 h / Inert atmosphere
2.1: dmap; 1H-imidazole / dichloromethane / 1 h / 20 °C / Inert atmosphere
3.1: sodium tetrahydroborate; cerium(III) chloride heptahydrate / methanol / 1 h / 0 °C / Inert atmosphere
4.1: (2S,3R)-3-isopropyl-2-phenyl-3,4-dihydro-2H-benzo[4,5]thiazolo[3,2-a]pyrimidine; N-ethyl-N,N-diisopropylamine / toluene / 16 h / -78 °C / Inert atmosphere; Resolution of racemate
View Scheme
3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

A

C19H26O5

C19H26O5

B

C15H20O4

C15H20O4

C

C19H26O5

C19H26O5

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: tetra-(n-butyl)ammonium iodide; triphenylphosphine; 2,3-dicyano-5,6-dichloro-p-benzoquinone / dichloromethane / 4 h / 20 °C / Inert atmosphere
1.2: 2 h / Inert atmosphere
2.1: dmap; 1H-imidazole / dichloromethane / 1 h / 20 °C / Inert atmosphere
3.1: sodium tetrahydroborate; cerium(III) chloride heptahydrate / methanol / 1 h / 0 °C / Inert atmosphere
4.1: (2S,3R)-3-isopropyl-2-phenyl-3,4-dihydro-2H-benzo[4,5]thiazolo[3,2-a]pyrimidine; N-ethyl-N,N-diisopropylamine / toluene / 16 h / -78 °C / Inert atmosphere; Resolution of racemate
View Scheme
3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

C23H34O5Si

C23H34O5Si

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: tetra-(n-butyl)ammonium iodide; triphenylphosphine; 2,3-dicyano-5,6-dichloro-p-benzoquinone / dichloromethane / 4 h / 20 °C / Inert atmosphere
1.2: 2 h / Inert atmosphere
2.1: dmap; 1H-imidazole / dichloromethane / 1 h / 20 °C / Inert atmosphere
3.1: sodium tetrahydroborate; cerium(III) chloride heptahydrate / methanol / 1 h / 0 °C / Inert atmosphere
4.1: osmium(VIII) oxide; 4-methylmorpholine N-oxide / tetrahydrofuran; water; tert-butyl alcohol / 12 h / 20 °C / Inert atmosphere
5.1: potassium carbonate / N,N-dimethyl-formamide / 20 °C / Inert atmosphere
View Scheme
3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

C19H32O5Si

C19H32O5Si

Conditions
ConditionsYield
Multi-step reaction with 7 steps
1.1: tetra-(n-butyl)ammonium iodide; triphenylphosphine; 2,3-dicyano-5,6-dichloro-p-benzoquinone / dichloromethane / 4 h / 20 °C / Inert atmosphere
1.2: 2 h / Inert atmosphere
2.1: dmap; 1H-imidazole / dichloromethane / 1 h / 20 °C / Inert atmosphere
3.1: sodium tetrahydroborate; cerium(III) chloride heptahydrate / methanol / 1 h / 0 °C / Inert atmosphere
4.1: osmium(VIII) oxide; 4-methylmorpholine N-oxide / tetrahydrofuran; water; tert-butyl alcohol / 12 h / 20 °C / Inert atmosphere
5.1: potassium carbonate / N,N-dimethyl-formamide / 20 °C / Inert atmosphere
6.1: toluene-4-sulfonic acid / dichloromethane / 1 h / 20 °C / Inert atmosphere
7.1: sodium acetate; hydrogen; palladium 10% on activated carbon / methanol / 12 h / 20 °C
View Scheme
3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

C19H30O5Si

C19H30O5Si

Conditions
ConditionsYield
Multi-step reaction with 8 steps
1.1: tetra-(n-butyl)ammonium iodide; triphenylphosphine; 2,3-dicyano-5,6-dichloro-p-benzoquinone / dichloromethane / 4 h / 20 °C / Inert atmosphere
1.2: 2 h / Inert atmosphere
2.1: dmap; 1H-imidazole / dichloromethane / 1 h / 20 °C / Inert atmosphere
3.1: sodium tetrahydroborate; cerium(III) chloride heptahydrate / methanol / 1 h / 0 °C / Inert atmosphere
4.1: osmium(VIII) oxide; 4-methylmorpholine N-oxide / tetrahydrofuran; water; tert-butyl alcohol / 12 h / 20 °C / Inert atmosphere
5.1: potassium carbonate / N,N-dimethyl-formamide / 20 °C / Inert atmosphere
6.1: toluene-4-sulfonic acid / dichloromethane / 1 h / 20 °C / Inert atmosphere
7.1: sodium acetate; hydrogen; palladium 10% on activated carbon / methanol / 12 h / 20 °C
8.1: Dess-Martin periodane / dichloromethane / 2 h / 20 °C / Inert atmosphere
View Scheme
3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

C19H30O6Si

C19H30O6Si

Conditions
ConditionsYield
Multi-step reaction with 9 steps
1.1: tetra-(n-butyl)ammonium iodide; triphenylphosphine; 2,3-dicyano-5,6-dichloro-p-benzoquinone / dichloromethane / 4 h / 20 °C / Inert atmosphere
1.2: 2 h / Inert atmosphere
2.1: dmap; 1H-imidazole / dichloromethane / 1 h / 20 °C / Inert atmosphere
3.1: sodium tetrahydroborate; cerium(III) chloride heptahydrate / methanol / 1 h / 0 °C / Inert atmosphere
4.1: osmium(VIII) oxide; 4-methylmorpholine N-oxide / tetrahydrofuran; water; tert-butyl alcohol / 12 h / 20 °C / Inert atmosphere
5.1: potassium carbonate / N,N-dimethyl-formamide / 20 °C / Inert atmosphere
6.1: toluene-4-sulfonic acid / dichloromethane / 1 h / 20 °C / Inert atmosphere
7.1: sodium acetate; hydrogen; palladium 10% on activated carbon / methanol / 12 h / 20 °C
8.1: Dess-Martin periodane / dichloromethane / 2 h / 20 °C / Inert atmosphere
9.1: sodium chlorite; sodium dihydrogenphosphate; 2-methyl-but-2-ene / water; tert-butyl alcohol / 12 h / 20 °C / Inert atmosphere
View Scheme
3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

C18H31NO4Si

C18H31NO4Si

Conditions
ConditionsYield
Multi-step reaction with 15 steps
1.1: tetra-(n-butyl)ammonium iodide; triphenylphosphine; 2,3-dicyano-5,6-dichloro-p-benzoquinone / dichloromethane / 4 h / 20 °C / Inert atmosphere
1.2: 2 h / Inert atmosphere
2.1: dmap; 1H-imidazole / dichloromethane / 1 h / 20 °C / Inert atmosphere
3.1: sodium tetrahydroborate; cerium(III) chloride heptahydrate / methanol / 1 h / 0 °C / Inert atmosphere
4.1: osmium(VIII) oxide; 4-methylmorpholine N-oxide / tetrahydrofuran; water; tert-butyl alcohol / 12 h / 20 °C / Inert atmosphere
5.1: potassium carbonate / N,N-dimethyl-formamide / 20 °C / Inert atmosphere
6.1: toluene-4-sulfonic acid / dichloromethane / 1 h / 20 °C / Inert atmosphere
7.1: sodium acetate; hydrogen; palladium 10% on activated carbon / methanol / 12 h / 20 °C
8.1: Dess-Martin periodane / dichloromethane / 2 h / 20 °C / Inert atmosphere
9.1: sodium chlorite; sodium dihydrogenphosphate; 2-methyl-but-2-ene / water; tert-butyl alcohol / 12 h / 20 °C / Inert atmosphere
10.1: thionyl chloride / dichloromethane / 0.75 h / 20 °C / Inert atmosphere
10.2: 1.5 h / Inert atmosphere
11.1: toluene-4-sulfonic acid / dichloromethane / 1 h / 20 °C / Inert atmosphere
12.1: boron trifluoride diethyl etherate; triethylsilane / dichloromethane / 2 h / -78 °C / Inert atmosphere
13.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.17 h / 20 °C / Inert atmosphere
13.2: 1 h / Inert atmosphere
14.1: sodium azide / N,N-dimethyl-formamide / 3 h / 20 °C / Inert atmosphere
15.1: hydrogen; palladium 10% on activated carbon / ethyl acetate / 1 h / 20 °C
View Scheme
3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

1-(4-((tert-butyldimethylsilyl)oxy)-3-methoxyphenyl)prop-2-en-1-one

1-(4-((tert-butyldimethylsilyl)oxy)-3-methoxyphenyl)prop-2-en-1-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: tetra-(n-butyl)ammonium iodide; triphenylphosphine; 2,3-dicyano-5,6-dichloro-p-benzoquinone / dichloromethane / 4 h / 20 °C / Inert atmosphere
1.2: 2 h / Inert atmosphere
2.1: dmap; 1H-imidazole / dichloromethane / 1 h / 20 °C / Inert atmosphere
View Scheme
3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone
2196-18-1

3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone

1-(4-((tert-butyldimethylsilyl)oxy)-3-methoxyphenyl)prop-2-en-1-ol
1491173-73-9

1-(4-((tert-butyldimethylsilyl)oxy)-3-methoxyphenyl)prop-2-en-1-ol

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: tetra-(n-butyl)ammonium iodide; triphenylphosphine; 2,3-dicyano-5,6-dichloro-p-benzoquinone / dichloromethane / 4 h / 20 °C / Inert atmosphere
1.2: 2 h / Inert atmosphere
2.1: dmap; 1H-imidazole / dichloromethane / 1 h / 20 °C / Inert atmosphere
3.1: sodium tetrahydroborate; cerium(III) chloride heptahydrate / methanol / 1 h / 0 °C / Inert atmosphere
View Scheme

2196-18-1Relevant articles and documents

Visible light-enabled selective depolymerization of oxidized lignin by an organic photocatalyst

Hao, Zhongkai,Jiang, Huating,Li, Shuyuan,Tong, Min,Wang, Kaixuan,Xiao, Yao,Yang, Yanan,Zhang, Fang

supporting information, p. 11243 - 11246 (2020/10/06)

The development of an economic, environmental-friendly and energy-saving process for the selective depolymerization of lignin is an outstanding challenge. Herein, a novel and efficient visible-light-induced photocatalytic process for the selective depolymerization of lignin model compounds and organosolv lignin was first developed by using perylene diimide (PDI) as a metal-free organocatalyst. Interestingly, it can completely decompose the oxidized lignin models to phenolic and ketone fragmentation molecules with very high selectivity at room temperature under visible light illumination. Furthermore, the use of a home-made photocatalytic continuous-flow reactor efficiently shortened the reaction time within an hour. Even for organosolv lignin, nearly 86% mass ratio of lignin was degraded to low-molecular-mass monoaromatic or diaromatic products. We found that superior performances were realized by single-electron transfer (SET) from the photoexcited strongly reducing PDI˙?anion to the ketone groups of the β-O-4 linkage in the lignin.

Sphingobacterium sp. T2 Manganese Superoxide Dismutase Catalyzes the Oxidative Demethylation of Polymeric Lignin via Generation of Hydroxyl Radical

Rashid, Goran M. M.,Zhang, Xiaoyang,Wilkinson, Rachael C.,Fül?p, Vilmos,Cottyn, Betty,Baumberger, Stéphanie,Bugg, Timothy D. H.

, p. 2920 - 2929 (2018/10/20)

Sphingobacterium sp. T2 contains two extracellular manganese superoxide dismutase enzymes which exhibit unprecedented activity for lignin oxidation but via an unknown mechanism. Enzymatic treatment of lignin model compounds gave products whose structures were indicative of aryl-Cα oxidative cleavage and demethylation, as well as alkene dihydroxylation and alcohol oxidation. 18O labeling studies on the SpMnSOD-catalyzed oxidation of lignin model compound guiaiacylglycerol-β-guaiacyl ether indicated that the an oxygen atom inserted by the enzyme is derived from superoxide or peroxide. Analysis of an alkali lignin treated by SpMnSOD1 by quantitative 31P NMR spectroscopy demonstrated 20-40% increases in phenolic and aliphatic OH content, consistent with lignin demethylation and some internal oxidative cleavage reactions. Assay for hydroxyl radical generation using a fluorometric hydroxyphenylfluorescein assay revealed the release of 4.1 molar equivalents of hydroxyl radical by SpMnSOD1. Four amino acid replacements in SpMnSOD1 were investigated, and A31H or Y27H site-directed mutant enzymes were found to show no lignin demethylation activity according to 31P NMR analysis. Structure determination of the A31H and Y27H mutant enzymes reveals the repositioning of an N-terminal protein loop, leading to widening of a solvent channel at the dimer interface, which would provide increased solvent access to the Mn center for hydroxyl radical generation.

GUAIACYL VINYL KETONE PRODUCTION METHOD

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Paragraph 0056-0057, (2016/10/08)

PROBLEM TO BE SOLVED: To provide a guaiacyl vinyl ketone production method that has higher reaction efficiency and is better suited to industrial-scale production than conventional techniques. SOLUTION: The purpose is achieved by a method of producing high-purity guaiacyl vinyl ketone efficiently under moderate conditions, the method including a step of obtaining guaiacyl vinyl ketone by bringing a basic substance and a 3-halogen-1-(4-hydroxy-3-methoxyphenyl)-1-propanone represented by general formula (1) into contact in a solvent. COPYRIGHT: (C)2015,JPOandINPIT

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