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2,4-dimethyl-4'-nitro-benzophenone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

42495-48-7

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42495-48-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42495-48-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,4,9 and 5 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 42495-48:
(7*4)+(6*2)+(5*4)+(4*9)+(3*5)+(2*4)+(1*8)=127
127 % 10 = 7
So 42495-48-7 is a valid CAS Registry Number.

42495-48-7Relevant academic research and scientific papers

Synthesis of Diaryl Ketones Catalyzed by Al2O 3-ZrO2/S2O82- Solid Superacid

Jin, Tong-Shou,Yang, Mi-Na,Feng, Guo-Liang,Li, Tong-Shuang

, p. 479 - 485 (2004)

The acylation of a variety of aromatic compounds with benzoyl chloride or its derivatives and catalytic amounts of Al2O3-ZrO 2/S2O82- solid superacid affords the corresponding diaryl ketones in good to excellent yields 75-93% at appropriate temperature.

Carboxylic Trifluoromethanesulfonic Anhydrides as Highly Effective Acylation Agents. - Perfluoroalkanesulfonic Acid Catalyzed Acylation of Arenes

Effenberger, Franz,Sohn, Erich,Epple, Gerhard

, p. 1195 - 1208 (2007/10/02)

Arene- and alkanecarboxylic trifluoromethanesulfonic anhydrides 2 and 5 are highly effective acylation agents, which react without Friedel-Crafts catalysts even with deactivated aromatics to yield aryl ketones 3 and 6, respectively.Acylation of arenes with carbonyl chlorides 4 and catalytic amounts of perfluoroalkanesulfonic acid gives ketones 3 and 6, resp., in good yields.Under similar conditions other strong Broensted acids show a considerably smaller degree of catalytic effect.

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