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4937-54-6

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4937-54-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4937-54-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,3 and 7 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 4937-54:
(6*4)+(5*9)+(4*3)+(3*7)+(2*5)+(1*4)=116
116 % 10 = 6
So 4937-54-6 is a valid CAS Registry Number.

4937-54-6Relevant articles and documents

Transition-Metal-Free Synthesis of Acridones via Base-Mediated Intramolecular Oxidative C?H Amination

Wei, Wen-Tao,Sheng, Jian-Fei,Miao, Hui,Luo, Xiang,Song, Xian-Heng,Yan, Ming,Zou, Yong

supporting information, p. 2101 - 2106 (2018/06/14)

Intramolecular oxidative C?H amination of 2-aminobenzophenones was achieved in the presence of potassium tert-butoxide and dimethyl sulfoxide. A series of functionalized acridones were prepared in moderate to excellent yields in a mild, efficient, and transition-metal-free manner. (Figure presented.).

Palladium-catalyzed oxidative C-H bond acylation of N-nitrosoanilines with toluene derivatives: A traceless approach to synthesize N-alkyl-2-aminobenzophenones

Wu, Yinuo,Feng, Ling-Jun,Lu, Xiao,Kwong, Fuk Yee,Luo, Hai-Bin

supporting information, p. 15352 - 15354 (2015/01/08)

A palladium-catalyzed cascade cross-coupling of N-nitroso-anilines and toluene derivatives for the direct synthesis of N-alkyl-2-aminobenzophenones is described. N-nitroso groups in anilines can act as the traceless directing groups while toluene derivatives can serve as effective acyl precursors under mild reaction conditions.

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