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99970-58-8

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99970-58-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99970-58-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,9,7 and 0 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 99970-58:
(7*9)+(6*9)+(5*9)+(4*7)+(3*0)+(2*5)+(1*8)=208
208 % 10 = 8
So 99970-58-8 is a valid CAS Registry Number.

99970-58-8Relevant articles and documents

Copper(I)-catalysed aerobic oxidative selective cleavage of C[sbnd]C bond with DMAP: Facile access to N-substituted benzamides

Ma, Haojie,Lu, Guoqiang,Han, Bo,Huang, Guosheng,Zhang, Yuqi,Wang, Ji-Jiang

supporting information, (2021/06/15)

A base/DMAP system for efficient oxidative cleavage of C(CO)–C(alkyl) bond to generate N-substituted benzamides has been developed in the presence of copper(I) chloride. The usage of inexpensive copper catalyst, broad substrate scope, mild conditions make

Ce(III)-catalyzed highly efficient synthesis of pyridyl benzamides from aminopyridines and nitroolefins without external oxidants

Chen, Zhengwang,Wen, Xiaowei,Qian, Yiping,Liang, Pei,Liu, Botao,Ye, Min

supporting information, p. 1247 - 1251 (2018/03/06)

An efficient synthesis of a variety of pyridyl benzamides from 2-aminopyridines and nitroolefins is described. This rare-earth-metal-catalyzed reaction provides the corresponding products with broad substrate scope in moderate to excellent yields, in the absence of additives and external oxidants. Water is used as the source of the carbonyl oxygen atom in pyridyl benzamides. Furthermore, 2-substituted oxazolo[4,5-b]pyridines are formed in good yields under the standard conditions when 2-aminopyridin-3-ols are used as the substrates.

Synthesis and antibacterial activity of benzamides and sulfonamide derived from 2-amino-5-bromo/nitropyridine against bacterial strains isolated from clinical patients

Rai, Diwakar,Singh, Ramendra K.

experimental part, p. 931 - 936 (2011/09/19)

A series of 5-(bromo/nitropyridin-2-yl)benzamide derivatives, viz. N-(5-bromopyridin-2-yl)benzamide 4a, 4-methyl-N-(5-bromopyridin-2-yl)benzamide 4b, 4-chloro-N-(5-bromopyridin-2-yl)benzamide 4c, 4-nitro-N-(5-bromopyridin-2- yl)benzamide 4d, N-(5-nitropyr

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