| Identification | More | [Name]
4,4'-Dimethylbenzophenone | [CAS]
611-97-2 | [Synonyms]
4,4'-DIMETHYLBENZOPHENONE
DI-P-TOLYL KETONE
4,4'-Carbonylbis(toluene)
Benzophenone, 4,4'-dimethyl-
bis(4-methylphenyl)-methanon
Bis(4-methylphenyl)methanone
Bis-p-tolyl ketone
Di(4-methylphenyl) ketone
Di-p-tolylmethanone
Methanone, bis(4-methylphenyl)-
p,p'-Dimethyl di-phenyl ketone
p,p'-Dimethylbenzophenone
p-Tolyl ketone
4,4'-DIMETHYL-BENZOPHENON
4,4'-Dimethylbenzophenone, 98+%
4,4'-Dimethylbenzophenone
Bis(4-methylphenyl) ketone | [EINECS(EC#)]
210-287-6 | [Molecular Formula]
C15H14O | [MDL Number]
MFCD00017214 | [Molecular Weight]
210.27 | [MOL File]
611-97-2.mol |
| Chemical Properties | Back Directory | [Appearance]
Pale brown crystalline powder | [Melting point ]
90-93 °C(lit.)
| [Boiling point ]
200 °C17 mm Hg(lit.)
| [density ]
1.0232 (rough estimate) | [refractive index ]
1.5361 (estimate) | [Fp ]
200°C/17mm | [storage temp. ]
Sealed in dry,Room Temperature | [form ]
Crystalline Powder | [color ]
Pale brown | [Water Solubility ]
Insoluble in water. | [BRN ]
1240527 | [InChI]
InChI=1S/C15H14O/c1-11-3-7-13(8-4-11)15(16)14-9-5-12(2)6-10-14/h3-10H,1-2H3 | [InChIKey]
ZWPWLKXZYNXATK-UHFFFAOYSA-N | [SMILES]
C(C1=CC=C(C)C=C1)(C1=CC=C(C)C=C1)=O | [CAS DataBase Reference]
611-97-2(CAS DataBase Reference) | [NIST Chemistry Reference]
4,4'-Dimethyl benzophenone(611-97-2) | [EPA Substance Registry System]
611-97-2(EPA Substance) |
| Questions And Answer | Back Directory | [Synthesis]
Using p-methylbenzoyl chloride and toluene as starting materials, and anhydrous AlCl3 as a catalyst, 4,4'-dimethylbenzophenone (4,4'-DMBP) was obtained via a Friedel-Crafts acylation reaction. The synthetic reaction formula is shown in the figure below:  |
| Safety Data | Back Directory | [Symbol(GHS) ]
GHS07 | [Signal word ]
Warning | [Hazard statements ]
H302-H315-H319 | [Precautionary statements ]
P261-P305+P351+P338 | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
S36/37:Wear suitable protective clothing and gloves .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . | [WGK Germany ]
3
| [TSCA ]
Yes | [HS Code ]
29143990 | [Storage Class]
11 - Combustible Solids |
| Hazard Information | Back Directory | [Chemical Properties]
Pale brown crystalline powder | [Uses]
4,4'-Dimethylbenzophenone is used as catalytic agent and petrochemical additive. It is also used as pharmaceutical intermediates. | [Synthesis Reference(s)]
Tetrahedron, 50, p. 12821, 1994 DOI: 10.1016/S0040-4020(01)81203-5
Tetrahedron Letters, 27, p. 3911, 1986 DOI: 10.1016/S0040-4039(00)83914-3 | [General Description]
4,4′-Dimethylbenzophenone reacts with bis(trichlorotitanium phenoxide), a bidentate Lewis acid, to form a crystalline complex. | [Purification Methods]
Purify the benzophenone by zone refining or distllation, preferably in a vacuum. [Beilstein 7 III 2181, 7 IV 1434.] |
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