2,3-Dimethyl-1,4-benzoquinone supplier

Name
2,3-dimethyl-2,5-cyclohexadiene-1,4 dione
EINECS
CAS No. 526-86-3
Article Data98
CAS DataBase
Density 1.115 g/cm³
Solubility
Melting Point 55-57℃
Formula C₈H₈O₂
Boiling Point 200.3 °C at 760 mmHg
Molecular Weight 136.15
Flash Point 70.9 °C
Transport Information
Appearance
Safety
Risk Codes
Molecular Structure
Hazard Symbols
Synonyms p-Benzoquinone,2,3-dimethyl- (7CI,8CI);2,3-Dimethyl-1,4-benzoquinone;2,3-Dimethyl-2,5-cyclohexadiene-1,4-dione;2,3-Dimethyl-p-benzoquinone;2,3-Dimethyl-p-quinone;2,3-Dimethylbenzoquinone;2,3-Dimethylquinone;NSC402192;o-Xyloquinone;
PSA 34.14000
LogP 1.03080

Synthetic route

: 608-43-5
2,3-dimethyl-1,4-dihydroxybenzene

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

Conditions

Conditions	Yield
With benzyltrimethylammonium tribromide; sodium acetate In dichloromethane; water for 2h; Ambient temperature;	100%
With oxygen; Nitrogen dioxide In dichloromethane at -10℃; for 12h;	100%
With oxygen; Nitrogen dioxide In dichloromethane at -10℃; for 12h;	100%

: 38969-08-3
2,3-dibromo-5,6-dimethylcyclohexa-2,5-diene-1,4-dione

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

Conditions

Conditions	Yield
With iron; acetic acid at 20℃; for 6h; Reflux;	96.3%

: 39021-83-5
3,6-dimethoxy-o-xylene

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

Conditions

Conditions	Yield
With cerium(IV) ammonium nitrate; silica gel In dichloromethane for 0.25h;	93%
With ammonium cerium (IV) nitrate; silica gel In dichloromethane; water	63%
With ammonium cerium (IV) nitrate; silica gel In dichloromethane; water	1.68 g

: 526-75-0
2,3-Dimethylphenol

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

Conditions

Conditions	Yield
With potassiuim nitrosodisulfonate; sodium acetate In water	75%
With potassium dihydrogenphosphate; potassium nitrososulfonate In acetone at 20℃; for 0.666667h;	65%
With potassium dihydrogenphosphate; K4(ON(SO3)2)2 In water at 5℃; for 1h;	60%

: 869163-88-2
2,3-dimethyl-cyclohex-3-ene-1,2-diol

A: 526-86-3
2,3-dimethyl-1,4-benzoquinone

B: 608-43-5
2,3-dimethyl-1,4-dihydroxybenzene

Conditions

Conditions	Yield
With silica gel; pyridinium chlorochromate In dichloromethane at 20℃; for 1h;	A n/a B 67%

: C16H18O2

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

Conditions

Conditions	Yield
In toluene for 24h; retro Diels-Alder reaction; Heating;	49%

: 553-97-9
2-Methyl-1,4-benzoquinone

: 75-65-0
tert-butyl alcohol

A: 526-86-3
2,3-dimethyl-1,4-benzoquinone

B: 935-92-2
2,3,5-Trimethyl-1,4-benzoquinone

Conditions

Conditions	Yield
With iron(III)-acetylacetonate; bis-[(trifluoroacetoxy)iodo]benzene at 120℃; for 5h; Sealed tube; Green chemistry;	A 16% B 42%

...Expand

: 126494-77-7
2,3-dimethyl-N-(phenylsulfonyl)aniline

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

Conditions

Conditions	Yield
With ammonium cerium(IV) nitrate In water; acetic acid for 24h; Ambient temperature;	41%

: 890898-40-5
C15H16O2

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

Conditions

Conditions	Yield
In toluene for 28h; retro Diels-Alder reaction; Heating;	35%

: 526-75-0
2,3-Dimethylphenol

: 546-67-8
lead(IV) tetraacetate

: 64-19-7
acetic acid

A: 526-86-3
2,3-dimethyl-1,4-benzoquinone

B: 7218-20-4
(RS)-6-Acetoxy-5,6-dimethyl-2,4-cyclohexadien-1-on

C: 91497-83-5
6,6-diacetoxy-2,3-dimethyl-cyclohexa-2,4-dienone

...Expand

: 87-59-2
2,3-Dimethylaniline

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

Conditions

Conditions	Yield
With sodium dichromate; sulfuric acid at 5 - 10℃;
With chromium(III) oxide; sulfuric acid
With potassium dichromate; sulfuric acid

: 95-47-6
o-xylene

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

Conditions

Conditions	Yield
With dihydrogen peroxide; Hexafluoroacetone In 1,2-dichloro-ethane at 70℃; for 4h; Yield given;

: 1122-20-9
2,3-dimethylcyclohex-2-en-1-one

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

Conditions

Conditions	Yield
With N-hydroxyphthalimide; sodium perchlorate In pyridine; acetonitrile Ambient temperature; electrochemical oxidation, 1.5 F/mol;

: 526-75-0
2,3-Dimethylphenol

A: 526-86-3
2,3-dimethyl-1,4-benzoquinone

B: 6665-95-8
2,3-dimethyl-6-nitrophenol

C: 77815-17-9
5,6-dimethyl-6-nitrocyclohexa-2,4-dienone

D: 115822-05-4
2,3-dimethyl-4-nitrocyclohexa-2,5-dienone

Conditions

Conditions	Yield
With Nitrogen dioxide In chloroform-d1 at -60℃; Further byproducts given;	A 13 % Spectr. B 18 % Spectr. C 22 % Spectr. D 31 % Spectr.

...Expand

: 526-75-0
2,3-Dimethylphenol

A: 526-86-3
2,3-dimethyl-1,4-benzoquinone

B: 4542-65-8
3,4-dimethyl-1,2-benzoquinone

Conditions

Conditions	Yield
With {Ru(IV)(2,2'-bipyridine)2(pyridine)O}(2+) In [D3]acetonitrile at 25℃; Mechanism; Product distribution;	A 89 % Spectr. B 11 % Spectr.

: 3096-69-3
4-amino-2,3-dimethylphenol

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

Conditions

Conditions	Yield
With iron(III) chloride Yield given;

: 145746-45-8
2,3-dimethyl-5-phenylsulfonyl-1,4-benzoquinone

: 608-43-5
2,3-dimethyl-1,4-dihydroxybenzene

A: 526-86-3
2,3-dimethyl-1,4-benzoquinone

B: 30771-72-3
2,3-dimethyl-5-phenylsulfonylhydroquinone

Conditions

Conditions	Yield
With sodium acetate In methanol; water at 24℃; Equilibrium constant; further compound;
With sodium acetate In methanol; water at 24℃; Equilibrium constant;

...Expand

: 608-43-5
2,3-dimethyl-1,4-dihydroxybenzene

: 144760-89-4
2,3-dimethyl-5-(4-methylphenylthio)cyclohexa-2,5-diene-1,4-dione

A: 526-86-3
2,3-dimethyl-1,4-benzoquinone

B: 30771-66-5
2,3-Dimethyl-6-p-tolylthiohydrochinon

Conditions

Conditions	Yield
With sodium acetate In methanol; water at 24℃; Equilibrium constant;

...Expand

: 87810-91-1
2,3-dimethyl-1,4-benzoquinone radical anion

A: 526-86-3
2,3-dimethyl-1,4-benzoquinone

B: 608-43-5
2,3-dimethyl-1,4-dihydroxybenzene

Conditions

Conditions	Yield
In water at 22℃; Rate constant;

: 87-59-2
2,3-Dimethylaniline

chromic acid: chromic acid

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

4-amino-2,3-dimethyl-phenol hydrochloride: 4-amino-2,3-dimethyl-phenol hydrochloride

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

Conditions

Conditions	Yield
With water; iron(III) chloride
With sulfuric acid; sodium nitrite anschliessend Erwaermen;
With sodium dichromate; sulfuric acid

alkaline aqueous sodium-<2.3-dimethyl-phenolate>-solution: alkaline aqueous sodium-<2.3-dimethyl-phenolate>-solution

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

Conditions

Conditions	Yield
With 4-sulfo-benzenediazonium-(1)-betaine at 0℃; anschliessendes Behandeln mit Na2S2O4 und Erhitzen des erhaltenen 4-Amino-2.3-dimethyl-phenols mit wss. H2SO4 und MnO2 (oder Fe2 (SO4)(3) unter Durchleiten von Wasserdampf;

: 1121-18-2
2-methyl-2-cyclohexen-1-one

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

Conditions

Conditions	Yield
Multi-step reaction with 3 steps 1: 68 percent / toluene / 4 h / Heating 2: 71 percent / tetrahydrofuran; diethyl ether 3: PCC; SiO2 / CH2Cl2 / 1 h / 20 °C View Scheme

: 16963-13-6
2-Methyl-6-acetoxy-cyclohexen-(2)-on

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: 71 percent / tetrahydrofuran; diethyl ether 2: PCC; SiO2 / CH2Cl2 / 1 h / 20 °C View Scheme

: 78660-13-6
p-(2,3-dimethyl-4-hydroxyphenylazo)benzenesulphonic acid

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: sodium dithionite 2: aq. ferric chloride View Scheme

iron 5,14-dihydrodibenzo[b,i][5,9,14,18]tetraaza[14]annulene: iron 5,14-dihydrodibenzo[b,i][5,9,14,18]tetraaza[14]annulene

: 608-43-5
2,3-dimethyl-1,4-dihydroxybenzene

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

Conditions

Conditions	Yield
With sulfuric acid In acetic acid	13.0 g (95%)

iron 5,14-dihydrodibenzo[b,i][5,9,14,18]tetraaza[14]annulene: iron 5,14-dihydrodibenzo[b,i][5,9,14,18]tetraaza[14]annulene

: 140-01-2
diethylenetriamine-N,N,N',N",N"-pentaacetic acid pentasodium salt

: 608-43-5
2,3-dimethyl-1,4-dihydroxybenzene

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

Conditions

Conditions	Yield
With sulfuric acid; dihydrogen peroxide In dichloromethane; acetic acid	11.8 g (87%)

...Expand

: (1'R,4'S,4a'R,8a'S)-6',7'-dimethyl-1',4',4a',8a'-tetrahydrospiro[cyclopropane-1,9'-[1,4]methanonaphthalene]-5',8'-dione

A: 526-86-3
2,3-dimethyl-1,4-benzoquinone

B: 765-46-8
spiro[2.4]hepta-4,6-diene

Conditions

Conditions	Yield
In toluene for 28h; Reflux;

: 130-22-3
alizarin red S

A: 526-86-3
2,3-dimethyl-1,4-benzoquinone

B: 3,4,5-trihydroxy-9,10-dioxodihydroanthracene-2-sulfonic acid

C: 6-formyl-3,4-dihydroxy-5,8-dioxo-5,8-dihydronaphthalene-2-sulphonic acid

D: C6H7O7S(1-)*Na(1+)

E: 7446-11-9
sulfur trioxide

F: 88-99-3
benzene-1,2-dicarboxylic acid

G: 123-73-9
crotonaldehyde

Conditions

Conditions	Yield
With chromium oxide; water for 0.333333h; pH=7; Catalytic behavior; Reagent/catalyst; UV-irradiation;

...Expand

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 139278-54-9
2-(triisopropylsiloxy)-1,3-butadiene

: (4αR,8aS)-2,3-dimethyl-6-(triisopropyl-silanyloxy)-4a,5,8,8a-tetrahydro-[1,4]naphthoquinone

Conditions

Conditions	Yield
(S)-oxazaborolidine-aluminum bromide at -78℃; for 1h; Diels-Alder reaction;	99%
With triflimide activated chiral oxazaborolidine In dichloromethane at -95℃; for 2h;	98%
With oxazaborolidinium(1+)*Tf2N(1-) In dichloromethane at -95℃; for 2h; Diels-Alder reaction;	98%
With chiral oxazaborolidinium triflimide catalyst In dichloromethane at -95℃; for 2h; Diels-Alder reaction;	98%

: 93119-96-1
3,4-diphenyl-2H-isoquinolin-1-one

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 3,4-dimethyl-12'-phenyl-5'H-spiro[cyclohex[3]ene-1,7'-isoindolo[2,1-b]isoquinoline]-2,5,5'-trione

Conditions

Conditions	Yield
With bis[dichloro(pentamethylcyclopentadienyl)iridium(III)]; copper(II) acetate monohydrate In toluene at 120℃; for 12h; Reagent/catalyst; Temperature; Inert atmosphere; Schlenk technique;	99%

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 917-54-4
methyllithium

A: 74894-32-9
4-Hydroxy-2,3,4-trimethyl-cyclohexa-2,5-dienone

B: 1,2,3,4-Tetramethyl-cyclohexa-2,5-diene-1,4-diol

C: 608-43-5
2,3-dimethyl-1,4-dihydroxybenzene

Conditions

Conditions	Yield
In diethyl ether at -78℃; for 1h;	A 96% B n/a C 2%

...Expand

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

A: 1,2,3,4-Tetramethyl-cyclohexa-2,5-diene-1,4-diol

B: 608-43-5
2,3-dimethyl-1,4-dihydroxybenzene

Conditions

Conditions	Yield
With methyllithium In tetrahydrofuran; diethyl ether at -78℃; for 1h;	A 96% B 4%

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 70901-64-3
trimethyl(2-methylenebut-3-enyl)silane

: (4aR,8aS)-2,3-dimethyl-6-(trimethyl-silanylmethyl)-4a,5,8,8a-tetrahydro-[1,4]naphthoquinone

Conditions

Conditions	Yield
With triflimide activated chiral oxazaborolidine In toluene at -78℃; for 5h;	96%

: 67-56-1
methanol

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 864514-96-5
2-chloro-5,6-dimethyl-4-methoxyphenol

Conditions

Conditions	Yield
Stage #1: methanol With acetyl chloride at 0℃; for 0.5h; Stage #2: 2,3-dimethyl-1,4-benzoquinone at 20℃;	96%

: 57158-83-5
bis(ethylene)(tricyclohexylphosphine)platinum

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 77115-61-8
ethylene(5-6-η-2,3-dimethylbenzo-1,4-quinone)(tricyclohexylphosphine)platinum

Conditions

Conditions	Yield
In diethyl ether carried out under dry nitrogen atm., stirring of mixture for 30 min, at room temp.; ppt. removed from mother-liquor, washed with light petroleum, addn. of washings to mother-liquor, soln. reduced in volume giving additional solid, combined crystals washed with light petroleum, elem. anal.;	95%

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 79670-21-6
1-benzyl-3-vinyl-1H-indole

: (4aS,11aS,11bS)-11-benzyl-2,3-dimethyl-5,11,11a,11b-tetrahydro-1H-benz o[a]carbazole-1,4(4aH)-dione

Conditions

Conditions	Yield
With C100H112MgO8P2 In methyl cyclohexane at -25℃; Diels-Alder Cycloaddition; Molecular sieve; Inert atmosphere; enantioselective reaction;	95%

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 63104-44-9
dimethyl 2,2-di(prop-2-ynyl)malonate

: dimethyl 6,7-dimethyl-5,8-dioxo-1,3,5,8-tetrahydro-2H-cyclopenta[b]naphthalene-2,2-dicarboxylate

Conditions

Conditions	Yield
With [RhCl(cis-cyclooctene)2]2; 4,4',4''-phosphanetriyltribenzonitrile In 1,2-dichloro-ethane at 70℃; for 18h; Inert atmosphere;	91%
With chlorobis(cyclooctene)rhodium(I) dimer; 4,4',4''-phosphanetriyltribenzonitrile In 1,2-dichloro-ethane at 70℃; for 18h; Inert atmosphere;	91%

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 114067-34-4
(3-methyl-2-butenyl)trifluorosilane

: 2134-79-4
2,3-dimethyl-5-(3-methyl-2-buten-1-yl)-2,5-cyclohexadiene-1,4-dione

Conditions

Conditions	Yield
With iron(III) chloride In formamide at 40℃; for 23h;	90%

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 762-72-1
allyl-trimethyl-silane

: 66557-15-1
6-allyl-2,3-dimethylbenzene-1,4-diol

Conditions

Conditions	Yield
With bismuth(lll) trifluoromethanesulfonate In dichloromethane at 20℃; for 0.25h;	90%

: 12130-66-4
bis(cycloocta-1,5-diene)platinum(0)

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 77115-54-9
{Pt(C6H2(CH3)2O2)(C8H12)}

Conditions

Conditions	Yield
In diethyl ether mixing under dry nitrogen atm. between -30 and -50°C; ppt. washing with light petroleum at -30°C, dried in vac.;	90%

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 108-24-7
acetic anhydride

: 5091-02-1
1,2,5-triacetoxy-3,4-dimethyl-benzene

Conditions

Conditions	Yield
With bismuth(lll) trifluoromethanesulfonate In acetonitrile at 20℃; for 0.916667h; Thiele-Winter acetoxylation;	85%
With boron trifluoride diethyl etherate for 3h; Ambient temperature;	77%
With boron trifluoride diethyl etherate
With sulfuric acid
With boron trifluoride diethyl etherate

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 492-88-6
3-ethoxysalicylaldehyde

: 5-ethoxy-1,4-dihydroxy-2,3-dimethyl-9H-xanthen-9-one

Conditions

Conditions	Yield
With dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer; cesium acetate In 1,2-dichloro-ethane at 90℃; for 16h;	85%

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 61230-66-8
1,5-dimethyl-4-amino-1,2,4-triazolium-3-thiolate

: 104-15-4
toluene-4-sulfonic acid

: 88305-42-4
Toluene-4-sulfonate4-amino-3-(2,5-dihydroxy-3,4-dimethyl-phenylsulfanyl)-1,5-dimethyl-4H-[1,2,4]triazol-1-ium;

Conditions

Conditions	Yield
In methanol for 24h; Ambient temperature;	84%

...Expand

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 513-81-5
2,3-dimethyl-buta-1,3-diene

: 38312-84-4
2,3,6,7-tetramethyl-4a,5,8,8a-tetrahydro-1,4-naphthoquinone

Conditions

Conditions	Yield
With acetic acid at 25 - 27℃; for 24h;	84%
In benzene for 4h; Heating;	80%
With acetic acid
In ethanol Addition; Diels-Alder; Heating;

: 4308-80-9, 59137-73-4
1-methylspiro<2,4>-4,6-heptadiene

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: C16H18O2

Conditions

Conditions	Yield
With cetyltrimethylammonim bromide In water at 20℃; for 5h; Diels-Alder reaction;	84%

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 95-54-5
1,2-diamino-benzene

: 92148-75-9
3,4-dimethylphenazin-2-ol

Conditions

Conditions	Yield
With acetic acid at -10℃; for 1h;	84%

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 698-27-1
4-methylsalicylaldehyde

: 1,4-dihydroxy-2,3,6-trimethyl-9H-xanthen-9-one

Conditions

Conditions	Yield
With dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer; cesium acetate In 1,2-dichloro-ethane at 90℃; for 16h;	84%

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 78-79-5
isoprene

: 59832-86-9
2,3,6-trimethyl-4a,5,8,8a-tetrahydro-1,4-naphthoquinone

Conditions

Conditions	Yield
In benzene for 4h; Heating;	83%
In ethanol Addition; Diels-Alder; Heating;
In ethanol at 80℃; for 3h; Diels-Alder reaction;

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 106-45-6
para-thiocresol

: 144760-89-4
2,3-dimethyl-5-(4-methylphenylthio)cyclohexa-2,5-diene-1,4-dione

Conditions

Conditions	Yield
palladium diacetate In tetrahydrofuran at 20℃; for 4h;	83%

: 67-56-1
methanol

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 2913-46-4
5-methoxy-2,3-dimethylcyclohexa-2,5-diene-1,4-dione

Conditions

Conditions	Yield
With oxygen; cobalt(II) acetate at 60℃; for 47h; Darkness;	82%
(i) Ac2O, H2SO4, (ii) /BRN= 1098229/, (iii) AgNO3; Multistep reaction;

: 1191-99-7
2,3-dihydro-2H-furan

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: (+)-2,3,3aR,8aS-tetrahydro-5-hydroxy-6,7-dimethyl-[2,3-d]-benzo[b]furan

Conditions

Conditions	Yield
With (S)-α,α-diphenyl-2-pyrrolidinemethanol derived catalyst In dichloromethane; acetonitrile at -78 - 23℃; for 7h;	82%

: 144332-84-3
meso-diethyl 2,7-diacetamido-4,5-dimethylenoctane-1,8-dioate

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 936823-39-1
meso-diethyl 3,3'-(6,7-dimethyl-5,8-dioxo-5,8-dihydronaphthalene-2,3-diyl)bis(2-acetamidopropanoate)

Conditions

Conditions	Yield
Stage #1: meso-diethyl 2,7-diacetamido-4,5-dimethylenoctane-1,8-dioate; 2,3-dimethyl-1,4-benzoquinone In toluene at 110℃; for 48h; Diels-Alder reaction; Stage #2: With manganese(IV) oxide In 1,4-dioxane at 20℃; for 48h; Further stages.;	82%

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 120-12-7
anthracene

: 2,3-dimethyltriptycene-1,4-quinone

Conditions

Conditions	Yield
With chloranil; acetic acid at 125℃; for 16h;	82%

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 347-54-6
5-fluoro-2-hydroxybenzaldehyde

: 7-fluoro-1,4-dihydroxy-2,3-dimethyl-9H-xanthen-9-one

Conditions

Conditions	Yield
With dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer; cesium acetate In 1,2-dichloro-ethane at 90℃; for 16h;	82%

: 526-86-3
2,3-dimethyl-1,4-benzoquinone

: 74785-32-3
(E)-cinnamyl(tributyl)tin

: 74792-69-1
5-(trans-cinnamyl)-2,3-dimethylhydroquinone

Conditions

Conditions	Yield
With boron trifluoride diethyl etherate In dichloromethane at -78℃;	81%

2,3-Dimethyl-1,4-benzoquinone Specification

The 2,5-Cyclohexadiene-1,4-dione,2,3-dimethyl-, with the CAS registry number 526-86-3, is also known as 2,3-Dimethyl-1,4-benzoquinone. This chemical's molecular formula is C₈H₈O₂ and molecular weight is 136.15. What's more, its systematic name is 2,3-dimethylcyclohexa-2,5-diene-1,4-dione. Its classification code is Mutation data.

Physical properties of 2,5-Cyclohexadiene-1,4-dione,2,3-dimethyl- are: (1)ACD/LogP: 1.45; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.45; (4)ACD/LogD (pH 7.4): 1.45; (5)ACD/BCF (pH 5.5): 7.39; (6)ACD/BCF (pH 7.4): 7.39; (7)ACD/KOC (pH 5.5): 145.72; (8)ACD/KOC (pH 7.4): 145.72; (9)#H bond acceptors: 2; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 0; (12)Polar Surface Area: 34.14 Å²; (13)Index of Refraction: 1.51; (14)Molar Refractivity: 36.54 cm³; (15)Molar Volume: 122 cm³; (16)Polarizability: 14.48×10^-24cm³; (17)Surface Tension: 36 dyne/cm; (18)Density: 1.115 g/cm³; (19)Flash Point: 70.9 °C; (20)Enthalpy of Vaporization: 43.65 kJ/mol; (21)Boiling Point: 200.3 °C at 760 mmHg; (22)Vapour Pressure: 0.326 mmHg at 25°C.

Preparation of 2,5-Cyclohexadiene-1,4-dione,2,3-dimethyl-: this chemical can be prepared by 2,3-dimethyl-phenol. This reaction will need reagents hydrated salcomine, O₂ and solvent dimethylformamide with the reaction time of 24 hours. The yield is about 33%.

2,5-Cyclohexadiene-1,4-dione,2,3-dimethyl- can be prepared by 2,3-dimethyl-phenol

Uses of 2,5-Cyclohexadiene-1,4-dione,2,3-dimethyl-: it can be used to produce 2,3-dibromo-5,6-dimethyl-[1,4]benzoquinone at the ambient temperature. It will need reagent bromine and solvent CHCl₃ with the reaction time of 40 hours. The yield is about 66%.

2,5-Cyclohexadiene-1,4-dione,2,3-dimethyl- can be used to produce 2,3-dibromo-5,6-dimethyl-[1,4]benzoquinone at the ambient temperature

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: CC1=C(C(=O)C=CC1=O)C
(2)InChI: InChI=1S/C8H8O2/c1-5-6(2)8(10)4-3-7(5)9/h3-4H,1-2H3
(3)InChIKey: AIACLXROWHONEE-UHFFFAOYSA-N

Product Name

2,3-dimethyl-2,5-cyclohexadiene-1,4 dione

Synthetic route

2,3-Dimethyl-1,4-benzoquinone Specification

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