Ethylhydroquinone supplier | CasNO.2349-70-4

Name
ETHYLHYDROQUINONE
EINECS
CAS No. 2349-70-4
Article Data36
CAS DataBase
Density 1.159 g/cm³
Solubility
Melting Point 111-112 °C
Formula C₈H₁₀O₂
Boiling Point 290.1 °C at 760 mmHg
Molecular Weight 138.166
Flash Point 144.6 °C
Transport Information
Appearance solid
Safety
Risk Codes
Molecular Structure
Hazard Symbols
Synonyms 1,4-Dihydroxy-2-ethylbenzene, Ethylquinol;
PSA 40.46000
LogP 1.66020

Synthetic route

: 31490-53-6
2-(1-hydroxy-ethyl)-benzene-1,4-diol

: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
With triethylsilane; trifluoroacetic acid In dichloromethane at 0 - 20℃; for 15h;	89%

: 1,4-O-di-propanoylethylhydroquinone

A: 1-O-propanoyl-2-ethylhydroquinone

B: 4-O-propanoyl-2-ethylhydroquinone

C: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
With isopropyl alcohol; Candida antarctica lipase B; immobilized In di-isopropyl ether at 45℃; for 1h; Title compound not separated from byproducts.;	A 87.7% B 2.6% C 9.7%

...Expand

: 4-ethyl-4-hydroxycyclohexa-2,5-dien-1-one

: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
With rhenium(VII) oxide In dichloromethane at 20℃; Dienone-Phenol Rearrangement;	78%

: 6-ethyl-1,4,4a,6,7,8a-hexahydro-1,4-methano-naphthalene-5,8-dione

: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
at 180℃; under 20 Torr;	48%

: 592-02-9
diethylcadmium

: 106-51-4
p-benzoquinone

A: 2349-70-4
2-ethylhydroquinone

B: 123-31-9
hydroquinone

Conditions

Conditions	Yield
In tetrahydrofuran Heating;	A 18% B 21 % Chromat.

...Expand

: 1,4-O-di-propanoylethylhydroquinone

: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
With Candida antarctica lipase B In di-isopropyl ether; isopropyl alcohol at 45℃; for 1h; Enzymatic reaction; regioselective reaction;	10%

: 64-17-5
ethanol

: 123-31-9
hydroquinone

: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
at 350℃; under 112509 Torr; for 2h;	6%

: 100-12-9
4-ethylnitrobenzene

: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
With sulfuric acid; aluminium at 95℃;
With oxalic acid; aluminium at 95℃;

: 4754-26-1
2-ethyl-1,4-benzoquinone

: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
With sulfur dioxide bei der Extraktion von Reismehlkaefern;

: 103323-98-4
1-(2-ethyl-4-hydroxy-phenyl)-ethanone

: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
With potassium hydroxide; dihydrogen peroxide in Leuchtgas-Atmosphaere;

: 5286-51-1
2-vinyl-1,4-dihydroxybenzene

: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
With ethyl acetate; platinum Hydrogenation;

: 105475-50-1
2,5-bis-methoxymethoxy-styrene

: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
With methanol; platinum Hydrogenation.Erwaermen des Reaktionsprodukts mit einem Kationen-Austauscher in Methanol;

: 490-78-8
2,5-Dihydroxyacetophenone

: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
With hydrogen; copper chromite In ethanol
With hydrogen; palladium
Wolff-Kishner reduction;

: 490-78-8
2,5-Dihydroxyacetophenone

A: 2349-70-4
2-ethylhydroquinone

B: 31490-53-6
2-(1-hydroxy-ethyl)-benzene-1,4-diol

Conditions

Conditions	Yield
With hydrogenchloride; sodium cyanoborohydride In tetrahydrofuran for 18h; Product distribution;	A 31 % Spectr. B 69 % Spectr.

: 97-93-8
triethylaluminum

: 106-51-4
p-benzoquinone

: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
In diethyl ether

: 2-ethyl-p-benzosemiquinone

A: 4754-26-1
2-ethyl-1,4-benzoquinone

B: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
In water at 22℃; Rate constant;

: 7647-01-0
hydrogenchloride

: 490-78-8
2,5-Dihydroxyacetophenone

amalgamated zinc: amalgamated zinc

: 2349-70-4
2-ethylhydroquinone

...Expand

: 100-12-9
4-ethylnitrobenzene

: 7664-93-9
sulfuric acid

aluminium: aluminium

A: 2349-70-4
2-ethylhydroquinone

B: 178698-88-9
4-amino-2-ethylphenol

C: 589-16-2
4-aminoethylbenzene

Conditions

Conditions	Yield
at 95℃;

...Expand

: 100-12-9
4-ethylnitrobenzene

: 144-62-7
oxalic acid

aluminium: aluminium

A: 2349-70-4
2-ethylhydroquinone

B: 178698-88-9
4-amino-2-ethylphenol

C: 589-16-2
4-aminoethylbenzene

Conditions

Conditions	Yield
at 95℃;

...Expand

2.5-dioxy-acetophenone: 2.5-dioxy-acetophenone

: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
With hydrogenchloride; amalgamated zinc

: 4754-26-1
2-ethyl-1,4-benzoquinone

: sodium hydrogensulfite

: 2349-70-4
2-ethylhydroquinone

: 103323-98-4
1-(2-ethyl-4-hydroxy-phenyl)-ethanone

: 7722-84-1
dihydrogen peroxide

aqueous KOH: aqueous KOH

: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
in Leuchtgas-Atmosphaere;

...Expand

ethylquinone: ethylquinone

: 2349-70-4
2-ethylhydroquinone

: 4754-26-1
2-ethyl-1,4-benzoquinone

SO2: SO2

: 2349-70-4
2-ethylhydroquinone

: 1205-91-0
benzene-1,4-diyl diacetate

: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
Stage #1: benzene-1,4-diyl diacetate With aluminium trichloride; sodium chloride at 195℃; for 0.15h; Fries rearrangement; Stage #2: With hydrogenchloride; amalgamated zinc for 3h; Clemmensen reduction; Heating; Further stages.;

: 38489-67-7
2,5-dihydroxycinnamate

: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: 200 - 220 °C / 0.01 Torr 2: ethyl acetate; platinum / Hydrogenation View Scheme

: 3056-60-8
3-acetoxy-1-ethylbenzene

: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: AlCl3; nitrobenzene / 0 °C 2: aqueous KOH; aqueous H2O2 / in Leuchtgas-Atmosphaere View Scheme

: 87905-74-6
hydroquinone bis(methoxymethyl)ether

: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
Multi-step reaction with 3 steps 1: diethyl ether / anschliessendes Behandeln mit Aethylenoxid 2: KOH 3: platinum; methanol / Hydrogenation.Erwaermen des Reaktionsprodukts mit einem Kationen-Austauscher in Methanol View Scheme

: 107153-33-3
2,5-bis-methoxymethoxy-phenethyl alcohol

: 2349-70-4
2-ethylhydroquinone

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: KOH 2: platinum; methanol / Hydrogenation.Erwaermen des Reaktionsprodukts mit einem Kationen-Austauscher in Methanol View Scheme

: 105-38-4
vinyl propionate

: 2349-70-4
2-ethylhydroquinone

: 4-O-propanoyl-2-ethylhydroquinone

Conditions

Conditions	Yield
With lipase B from Candida antarctica, immobilized form In di-isopropyl ether at 45℃; for 72h; Enzymatic reaction; regioselective reaction;	90%

: 2349-70-4
2-ethylhydroquinone

: 2094-72-6
1-Adamantanecarbonyl chloride

: 1041191-13-2
4-(adamantane-1-carbonyloxy)-2-ethylphenol

Conditions

Conditions	Yield
With pyridine In dichloromethane at 20℃; for 48h;	86%
With pyridine In dichloromethane at 20℃; for 30h;	86%

: 105-38-4
vinyl propionate

: 2349-70-4
2-ethylhydroquinone

A: 1,4-O-di-propanoylethylhydroquinone

B: 1-O-propanoyl-2-ethylhydroquinone

C: 4-O-propanoyl-2-ethylhydroquinone

Conditions

Conditions	Yield
With Candida antarctica lipase B In di-isopropyl ether at 45℃; for 24h;	A 11.5% B 8.4% C 73.2%
With lipase B from Candida antarctica, immobilized form In di-isopropyl ether at 45℃; for 24h; Enzymatic reaction; Overall yield = 93 %Spectr.; regioselective reaction;	A 12 %Spectr. B 8 %Spectr. C 73 %Spectr.

...Expand

: 108-31-6
maleic anhydride

: 2349-70-4
2-ethylhydroquinone

: 15012-53-0
2-ethyl-5,8-dihydroxy-1,4-naphthoquinone

Conditions

Conditions	Yield
With aluminium trichloride; sodium chloride at 170 - 200℃;

: 609-14-3
2-acetylpropanoic acid ethyl ester

: 2349-70-4
2-ethylhydroquinone

: 854903-98-3
7-ethyl-6-hydroxy-3,4-dimethyl-coumarin

Conditions

Conditions	Yield
With sulfuric acid
With trichlorophosphate

: 542-05-2
acetonedicarboxylic acid

: 2349-70-4
2-ethylhydroquinone

: 853930-57-1
(7-ethyl-6-hydroxy-2-oxo-2H-chromen-4-yl)-acetic acid

: 1115-30-6
diethyl acetylsuccinate

: 2349-70-4
2-ethylhydroquinone

A: 853929-98-3
(7-ethyl-6-hydroxy-4-methyl-2-oxo-2H-chromen-3-yl)-acetic acid

B: (7-ethyl-6-hydroxy-4-methyl-2-oxo-2H-chromen-3-yl)-acetic acid ethyl ester

Conditions

Conditions	Yield
With trichlorophosphate
With sulfuric acid

...Expand

: 2349-70-4
2-ethylhydroquinone

: 15719-64-9, 15719-76-3, 97762-63-5
methylammonium carbonate

A: 32797-07-2
3-ethyl-2,5-dihydroxy-benzoic acid

B: 74712-94-0
4-ethyl-2,5-dihydroxy-benzoic acid

Conditions

Conditions	Yield
With potassium hydrogencarbonate; glycerol at 160℃;

...Expand

: 2349-70-4
2-ethylhydroquinone

: 4754-26-1
2-ethyl-1,4-benzoquinone

Conditions

Conditions	Yield
With chromium(III) oxide; sulfuric acid
With hydrogenchloride; iron(III) chloride In methanol
With potassium hexacyanoferrate(III) In diethyl ether; benzene
With oxygen In methanol; phosphate buffer at 37℃; pH=7.40; Kinetics; Further Variations:; effect of superoxide dismutase from bovine erythrocites; Oxidation;
With chromium(VI) oxide In water; acetic acid

: 2349-70-4
2-ethylhydroquinone

: 108-24-7
acetic anhydride

: 57982-10-2
1,4-diacetoxy-2-ethyl-benzene

Conditions

Conditions	Yield
With sodium acetate

: 2349-70-4
2-ethylhydroquinone

: 141-97-9
ethyl acetoacetate

: 118337-34-1
7-ethyl-6-hydroxy-4-methyl-coumarin

Conditions

Conditions	Yield
With sulfuric acid
With trichlorophosphate

: 2349-70-4
2-ethylhydroquinone

: 94-02-0
ethyl 3-oxo-3-phenylpropionate

: 7-ethyl-6-hydroxy-4-phenyl-coumarin

Conditions

Conditions	Yield
With trichlorophosphate
With sulfuric acid

: 2349-70-4
2-ethylhydroquinone

: 98-88-4
benzoyl chloride

: 2-ethyl-1,4-bis-benzoyloxy-benzene

Conditions

Conditions	Yield
With pyridine

: 2349-70-4
2-ethylhydroquinone

: 77-78-1
dimethyl sulfate

: 1199-08-2
ethylhydroquinone dimethyl ether

Conditions

Conditions	Yield
With potassium hydroxide
With sodium hydroxide at 40℃; for 0.5h;	7 g

: 2349-70-4
2-ethylhydroquinone

: 607-97-6
ethyl 2-ethyl-3-oxobutanoate

: 3,7-diethyl-6-hydroxy-4-methyl-coumarin

Conditions

Conditions	Yield
With sulfuric acid

: 2349-70-4
2-ethylhydroquinone

: 1540-29-0
ethyl 2-butylacetoacetate

: 7-ethyl-3-butyl-6-hydroxy-4-methyl-coumarin

Conditions

Conditions	Yield
With trichlorophosphate

: 2349-70-4
2-ethylhydroquinone

: 1540-28-9
ethyl 2-propylacetoacetate

: 7-ethyl-6-hydroxy-4-methyl-3-propyl-coumarin

Conditions

Conditions	Yield
With sulfuric acid

: 766-39-2
2,3-Dimethylmaleic anhydride

: 2349-70-4
2-ethylhydroquinone

: 5,8-dihydroxy-2,3-dimethyl-6-ethyl-1,4-naphthoquinone

Conditions

Conditions	Yield
With hydrogenchloride; aluminium trichloride; sodium chloride 1.) 180 deg C, 3 h; 2.) r.t., 2 days; Multistep reaction;

Ethylhydroquinone Specification

The Ethylhydroquinone, with the CAS registry number of 2349-70-4, is also known as 1,4-Dihydroxy-2-ethylbenzene, Ethylquinol. It belongs to the product categories of Anthraquinones, Hydroquinones and Quinones. This chemical's molecular formula is C₈H₁₀O₂ and molecular weight is 138.16. What's more, its systematic name is 2-Ethylbenzene-1,4-diol.

Physical properties about the Ethylhydroquinone are: (1)ACD/LogP: 1.64; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.64; (4)ACD/LogD (pH 7.4): 1.64; (5)ACD/BCF (pH 5.5): 10.31; (6)ACD/BCF (pH 7.4): 10.3; (7)ACD/KOC (pH 5.5): 184.86; (8)ACD/KOC (pH 7.4): 184.74; (9)#H bond acceptors: 2; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 3; (12)Polar Surface Area: 18.46 Å²; (13)Index of Refraction: 1.578; (14)Molar Refractivity: 39.56 cm³; (15)Molar Volume: 119.1 cm³; (16)Surface Tension: 48.2 dyne/cm; (17)Density: 1.159 g/cm³; (18)Flash Point: 144.6 °C; (19)Enthalpy of Vaporization: 55.06 kJ/mol; (20)Boiling Point: 290.1 °C at 760 mmHg; (21)Vapour Pressure: 0.00122 mmHg at 25 °C.

You can still convert the following datas into molecular structure:
(1) SMILES: Oc1ccc(O)cc1CC;
(2) InChI: InChI=1/C8H10O2/c1-2-6-5-7(9)3-4-8(6)10/h3-5,9-10H,2H2,1H3;
(3) InChIKey: VJIDDJAKLVOBSE-UHFFFAOYAR;

Product Name

ETHYLHYDROQUINONE

Synthetic route

Ethylhydroquinone Specification

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