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861721-51-9

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861721-51-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 861721-51-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,1,7,2 and 1 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 861721-51:
(8*8)+(7*6)+(6*1)+(5*7)+(4*2)+(3*1)+(2*5)+(1*1)=169
169 % 10 = 9
So 861721-51-9 is a valid CAS Registry Number.

861721-51-9Relevant articles and documents

Decarboxylative nucleophilic difluoromethylation of aldehydes and imines

Chen, Jia,Lin, Jin-Hong,Xiao, Ji-Chang

, p. 4295 - 4297 (2018)

The high demand for the biologically active CF2H-molecules has stimulated significant efforts to develop efficient methods for the installation of CF2H functionality. We found that phenylsulfonyl difluoroacetate salt (PhSO2/sub

Efficient nucleophilic difluoromethylation of aldehydes with (phenylsulfonyl)difluoromethylzinc and (phenylsulfonyl)difluoromethylcadmium reagents

Jiang, Fanzhou,Ni, Chuanfa,Hu, Jinbo

, p. 67 - 75 (2017/06/23)

A new strategy for nucleophilic addition to aldehydes with difluoromethyl organometallic reagents has been developed by functionalizing the difluoromethyl moiety with the phenylsulfonyl group (SO2Ph). This electron-withdrawing group influences

Nucleophilic difluoro(phenylsulfonyl)methylation of carbonyls with PhSO2CF2H reagent in the presence of in situ generated substoichiometric amount of base Dedicated to Professor Iwao Ojima on the occasion of his receipt of the ACS Aw

Hu, Mingyou,Gao, Bing,Ni, Chuanfa,Zhang, Laijun,Hu, Jinbo

, p. 52 - 58 (2013/10/01)

The reactions between carbonyl compounds and PhSO2CF 2H using substoichiometric amount of base in situ generated from N(TMS)3 and catalytic amount of Me4NF have been investigated. It is found that both enolizabl

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