Product Name

  • Name

    2,3-DIMETHYLACETOPHENONE

  • EINECS
  • CAS No. 2142-71-4
  • Article Data12
  • CAS DataBase
  • Density 0.965 g/cm3
  • Solubility
  • Melting Point -14.3 °C
  • Formula C10H12O
  • Boiling Point 236.65 °C at 760 mmHg
  • Molecular Weight 148.205
  • Flash Point 92.375 °C
  • Transport Information
  • Appearance
  • Safety
  • Risk Codes
  • Molecular Structure Molecular Structure of 2142-71-4 (2,3-DIMETHYLACETOPHENONE)
  • Hazard Symbols
  • Synonyms 2,3-dimethylphenylethanone;Acetophenone,2',3'-dimethyl- (6CI,7CI,8CI);1-(2,3-Dimethylphenyl)ethanone;2,3-Dimethylacetophenone;
  • PSA 17.07000
  • LogP 2.50600

Synthetic route

3-chloro-o-xylene
608-23-1

3-chloro-o-xylene

acetic anhydride
108-24-7

acetic anhydride

1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

Conditions
ConditionsYield
Stage #1: 3-chloro-o-xylene With ethylmagnesium bromide; magnesium; lithium chloride In tetrahydrofuran at 40 - 50℃; for 10h;
Stage #2: acetic anhydride In tetrahydrofuran; toluene at -5 - 5℃; for 2h; Temperature; Inert atmosphere;
79.2%
acetyl iodide
507-02-8

acetyl iodide

o-xylene
95-47-6

o-xylene

1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

Conditions
ConditionsYield
UV-irradiation;61%
o-xylene
95-47-6

o-xylene

acetic acid
64-19-7

acetic acid

A

1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

B

3,4-dimethylacetophenone
3637-01-2

3,4-dimethylacetophenone

Conditions
ConditionsYield
With phosphorus pentoxide Title compound not separated from byproducts;A 5%
B n/a
2,3-dimethylbenzoyl chloride
21900-46-9

2,3-dimethylbenzoyl chloride

dimethylcadmium
506-82-1

dimethylcadmium

1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

Conditions
ConditionsYield
With diethyl ether
acetic acid
64-19-7

acetic acid

2,3-dimethylbenzoic acid
603-79-2

2,3-dimethylbenzoic acid

1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

Conditions
ConditionsYield
With thorium dioxide at 430 - 450℃;
methyl magnesium iodide
917-64-6

methyl magnesium iodide

2,3-dimethylbenzonitrile
5724-56-1

2,3-dimethylbenzonitrile

1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

Conditions
ConditionsYield
(i), (ii) aq. HCl; Multistep reaction;
1-(3-Methyl-2-methylene-cyclohex-3-enyl)-ethanone
33334-67-7

1-(3-Methyl-2-methylene-cyclohex-3-enyl)-ethanone

1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

Conditions
ConditionsYield
palladium on activated charcoal at 200℃; for 5h;
2-(1-ethoxyethoxy)-2-lithiopropanenitrile
69849-04-3

2-(1-ethoxyethoxy)-2-lithiopropanenitrile

Cr(CO)3(o-xylene)

Cr(CO)3(o-xylene)

A

1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

B

3,4-dimethylacetophenone
3637-01-2

3,4-dimethylacetophenone

Conditions
ConditionsYield
Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;
2,3-Dimethylaniline
87-59-2

2,3-Dimethylaniline

1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 1.) diazotizing agent
View Scheme
C14H20O

C14H20O

1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

Conditions
ConditionsYield
With hydrogenchloride; water In diethyl ether at 20℃; for 1h; Inert atmosphere;
o-xylene
95-47-6

o-xylene

acetyl chloride
75-36-5

acetyl chloride

A

1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

B

3,4-dimethylacetophenone
3637-01-2

3,4-dimethylacetophenone

Conditions
ConditionsYield
With polystyrene supported aluminium triflate at 20℃; for 0.9h; Friedel-Crafts acylation; Neat (no solvent); regioselective reaction;
1-(2,3-dimethylphenyl)ethanol
60907-90-6

1-(2,3-dimethylphenyl)ethanol

1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

Conditions
ConditionsYield
With chromium(VI) oxide 2,3-Dimethyl-benzoylchlorid, Dimethylcadmium;
1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

(1-trityl-1H-imidazol-4-yl)magnesium bromide
184579-26-8

(1-trityl-1H-imidazol-4-yl)magnesium bromide

4-<1-(2,3-dimethylphenyl)-1-hydroxyethyl>-1-(triphenylmethyl)imidazole
176721-03-2

4-<1-(2,3-dimethylphenyl)-1-hydroxyethyl>-1-(triphenylmethyl)imidazole

Conditions
ConditionsYield
Stage #1: (1-trityl-1H-imidazol-4-yl)magnesium bromide With lanthanum(III) chloride; SeCl3; tetrabutyl-ammonium chloride In tetrahydrofuran; diethyl ether at 20℃; for 0.5h; Schlenk technique; Inert atmosphere;
Stage #2: 1-(2,3-dimethyl-phenyl)-ethanone With 18-crown-6 ether In tetrahydrofuran at 0 - 20℃; for 3h; Reagent/catalyst; Solvent; Temperature; Concentration;
96.1%
1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

toluene-4-sulfonic acid hydrazide
1576-35-8

toluene-4-sulfonic acid hydrazide

2,3-dimethylacetophenone tosylhydrazone

2,3-dimethylacetophenone tosylhydrazone

Conditions
ConditionsYield
86%
1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

1-(2,3-dimethylphenyl)ethanol
60907-90-6

1-(2,3-dimethylphenyl)ethanol

Conditions
ConditionsYield
With formic acid; (η6-C10H14)Ru(Ts-ampi)Cl; sodium formate In water at 82℃; for 0.0166667h;72%
With diisobutylaluminium hydride
1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

trimethyl sulfonium hydrogen sulfate

trimethyl sulfonium hydrogen sulfate

2-(2,3-dimethylphenyl)-2-methyloxirane
42432-45-1

2-(2,3-dimethylphenyl)-2-methyloxirane

Conditions
ConditionsYield
With potassium hydroxide at 30 - 50℃; for 7.5h;60.1%
1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

3-ethyl-o-xylene
933-98-2

3-ethyl-o-xylene

Conditions
ConditionsYield
With hydrogenchloride; amalgamated zinc
1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

benzaldehyde
100-52-7

benzaldehyde

2',3'-dimethyl-trans-chalcone
19811-08-6

2',3'-dimethyl-trans-chalcone

1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

1-(2,3-dimethylphenyl)diazoethane

1-(2,3-dimethylphenyl)diazoethane

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 86 percent
2: NaH / tetrahydrofuran
3: 75 °C
View Scheme
1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

2,3-dimethylacetophenone tosylhydrazone Na salt

2,3-dimethylacetophenone tosylhydrazone Na salt

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 86 percent
2: NaH / tetrahydrofuran
View Scheme
1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

6,7-dimethyl-3-phenylindan-1-one
109036-34-2

6,7-dimethyl-3-phenylindan-1-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
2: AlCl3; CS2
View Scheme
1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

1-(2,3-Dimethylphenyl)-1-(1H-imidazol-2-yl)ethanol
944267-28-1

1-(2,3-Dimethylphenyl)-1-(1H-imidazol-2-yl)ethanol

Conditions
ConditionsYield
Stage #1: 1-(diethoxymethyl)-1H-imidazole With n-butyllithium; N,N,N,N,-tetramethylethylenediamine In 2-methyltetrahydrofuran; hexane at -40 - -25℃; for 1h;
Stage #2: 1-(2,3-dimethyl-phenyl)-ethanone In 2-methyltetrahydrofuran; hexane at 0 - 20℃; Product distribution / selectivity;
1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

(S)-dexmedetomidine-L-(+)-tartaric acid salt

(S)-dexmedetomidine-L-(+)-tartaric acid salt

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: tetrabutyl-ammonium chloride; lanthanum(III) chloride; SeCl3 / diethyl ether; tetrahydrofuran / 0.5 h / 20 °C / Schlenk technique; Inert atmosphere
1.2: 3 h / 0 - 20 °C
2.1: triethylsilane; trifluoroacetic acid / dichloromethane / -10 - 20 °C
3.1: ethanol; isopropyl alcohol / 20 °C / Reflux
View Scheme
1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

dexmedetomidine hydrochloride

dexmedetomidine hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: tetrabutyl-ammonium chloride; lanthanum(III) chloride; SeCl3 / diethyl ether; tetrahydrofuran / 0.5 h / 20 °C / Schlenk technique; Inert atmosphere
1.2: 3 h / 0 - 20 °C
2.1: triethylsilane; trifluoroacetic acid / dichloromethane / -10 - 20 °C
3.1: ethanol; isopropyl alcohol / 20 °C / Reflux
4.1: sodium hydroxide / water / pH 8.5
View Scheme
1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

dexmedetomidine
113775-47-6

dexmedetomidine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: tetrabutyl-ammonium chloride; lanthanum(III) chloride; SeCl3 / diethyl ether; tetrahydrofuran / 0.5 h / 20 °C / Schlenk technique; Inert atmosphere
1.2: 3 h / 0 - 20 °C
2.1: triethylsilane; trifluoroacetic acid / dichloromethane / -10 - 20 °C
View Scheme
1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

C19H18N2O

C19H18N2O

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: acetic acid / ethanol / 0.5 h / Reflux
2.1: trichlorophosphate / 0.5 h / 0 °C
2.2: 0 - 20 °C
View Scheme
1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

2-{2-[3-(2,3-dimethylphenyl)-1-(4-methoxy-phenyl)-1Hpyrazol-4-yl]-vinyl}-3-phenyl-pyrido[1,2-a]pyrimidin-4-one

2-{2-[3-(2,3-dimethylphenyl)-1-(4-methoxy-phenyl)-1Hpyrazol-4-yl]-vinyl}-3-phenyl-pyrido[1,2-a]pyrimidin-4-one

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: acetic acid / ethanol / 0.5 h / Reflux
2.1: trichlorophosphate / 0.5 h / 0 °C
2.2: 0 - 20 °C
3.1: sodium ethanolate / ethanol / 13 h / Reflux
View Scheme
1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

2-{2-[3-(2,3-dimethylphenyl)-1-p-tolyl-1H-pyrazol-4-yl]-vinyl}-3-phenyl-pyrido[1,2-a]pyrimidin-4-one

2-{2-[3-(2,3-dimethylphenyl)-1-p-tolyl-1H-pyrazol-4-yl]-vinyl}-3-phenyl-pyrido[1,2-a]pyrimidin-4-one

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: acetic acid / ethanol / 0.5 h / Reflux
2.1: trichlorophosphate / 0.5 h / 0 °C
2.2: 0 - 20 °C
3.1: sodium ethanolate / ethanol / 13 h / Reflux
View Scheme
1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

C19H18N2O2

C19H18N2O2

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: acetic acid / ethanol / 0.5 h / Reflux
2.1: trichlorophosphate / 0.5 h / 0 °C
2.2: 0 - 20 °C
View Scheme
1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

N-4-methylphenylhydrazine
539-44-6

N-4-methylphenylhydrazine

C17H20N2

C17H20N2

Conditions
ConditionsYield
With acetic acid In ethanol for 0.5h; Reflux;
1-(2,3-dimethyl-phenyl)-ethanone
2142-71-4

1-(2,3-dimethyl-phenyl)-ethanone

4-Methoxyphenylhydrazine
3471-32-7

4-Methoxyphenylhydrazine

C17H20N2O

C17H20N2O

Conditions
ConditionsYield
With acetic acid In ethanol for 0.5h; Reflux;

2',3'-Dimethylacetophenone Specification

The Ethanone,1-(2,3-dimethylphenyl)-, with CAS registry number 2142-71-4, has the systematic name of 1-(2,3-dimethylphenyl)ethanone. Besides this, it is also called 2,3-Dimethylacetophenone. And the chemical formula of this chemical is C10H12O.

Physical properties of Ethanone,1-(2,3-dimethylphenyl)-: (1)ACD/LogP: 1.32; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.318; (4)ACD/LogD (pH 7.4): 1.318; (5)ACD/BCF (pH 5.5): 5.907; (6)ACD/BCF (pH 7.4): 5.907; (7)ACD/KOC (pH 5.5): 124.094; (8)ACD/KOC (pH 7.4): 124.094; (9)#H bond acceptors: 1; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 1; (12)Polar Surface Area: 17.07 Å2; (13)Index of Refraction: 1.51; (14)Molar Refractivity: 45.931 cm3; (15)Molar Volume: 153.514 cm3; (16)Polarizability: 18.208×10-24cm3; (17)Surface Tension: 32.93 dyne/cm; (18)Density: 0.965 g/cm3; (19)Flash Point: 92.375 °C; (20)Enthalpy of Vaporization: 47.345 kJ/mol; (21)Boiling Point: 236.65 °C at 760 mmHg; (22)Vapour Pressure: 0.047 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: Cc1cccc(c1C)C(=O)C
(2)InChI: InChI=1/C10H12O/c1-7-5-4-6-10(8(7)2)9(3)11/h4-6H,1-3H3
(3)InChIKey: YXJIYJZHAPHBHG-UHFFFAOYAK
(4)Std. InChI: InChI=1S/C10H12O/c1-7-5-4-6-10(8(7)2)9(3)11/h4-6H,1-3H3
(5)Std. InChIKey: YXJIYJZHAPHBHG-UHFFFAOYSA-N

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