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871506-89-7

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871506-89-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 871506-89-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,1,5,0 and 6 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 871506-89:
(8*8)+(7*7)+(6*1)+(5*5)+(4*0)+(3*6)+(2*8)+(1*9)=187
187 % 10 = 7
So 871506-89-7 is a valid CAS Registry Number.

871506-89-7Relevant articles and documents

Monofluoro-substituted azomethine ylides in fluorocarbene reactions with imines. Synthesis and transformations of monofluoroaziridines

Konev,Novikov,Khlebnikov

, p. 286 - 296 (2007/10/03)

N-Arylmethylene and N-benzhydrylideneamines react with fluorocarbene yielding fluoro-substituted azomethine ylides that undergo 1,3-π-cyclization into aziridines. Generation of fluoroylides in the presence of dipolarophiles (dimethyl maleate or dimethyl acetylenedicarboxylate) led to the reaction of 1,3-dipolar cycloaddition resulting in substituted 2-pyrrolines or pyrroles. 2-Fluoroaziridines, products of N-alkyl-N-benzhydrylideneamines 1,3-π-cyclization, in the presence of acid catalysts suffer isomerization into α-fluoroimines and 1,3-disubstituted indoles.

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