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2,3-Dimethyl-1,4-benzoquinone

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Name

2,3-Dimethyl-1,4-benzoquinone

EINECS N/A
CAS No. 526-86-3 Density 1.115 g/cm3
PSA 34.14000 LogP 1.03080
Solubility N/A 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 N/A Appearance N/A
Safety Risk Codes N/A
Molecular Structure Molecular Structure of 526-86-3 (2,3-dimethyl-2,5-cyclohexadiene-1,4 dione) Hazard Symbols N/A
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;

Article Data 98

2,3-Dimethyl-1,4-benzoquinone Synthetic route

608-43-5

2,3-dimethyl-1,4-dihydroxybenzene

526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
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
ConditionsYield
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
ConditionsYield
With cerium(IV) ammonium nitrate; silica gel In dichloromethane for 0.25h;93%
With ammonium cerium (IV) nitrate; silica gel In dichloromethane; water63%
With ammonium cerium (IV) nitrate; silica gel In dichloromethane; water1.68 g
526-75-0

2,3-Dimethylphenol

526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
With potassiuim nitrosodisulfonate; sodium acetate In water75%
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
ConditionsYield
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
ConditionsYield
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
ConditionsYield
With iron(III)-acetylacetonate; bis-[(trifluoroacetoxy)iodo]benzene at 120℃; for 5h; Sealed tube; Green chemistry;A 16%
B 42%
126494-77-7

2,3-dimethyl-N-(phenylsulfonyl)aniline

526-86-3

2,3-dimethyl-1,4-benzoquinone

Conditions
ConditionsYield
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
ConditionsYield
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

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

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