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212475-58-6

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212475-58-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 212475-58-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,2,4,7 and 5 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 212475-58:
(8*2)+(7*1)+(6*2)+(5*4)+(4*7)+(3*5)+(2*5)+(1*8)=116
116 % 10 = 6
So 212475-58-6 is a valid CAS Registry Number.

212475-58-6Relevant articles and documents

Ligand effects in the metal catalysed reactions of N-aryldiazoamides: Ylide formation vs. insertion reactions

Moody, Christopher J.,Miah, Soyfur,Slawin, Alexandra M. Z.,Mansfield, Darren J.,Richards, Ian C.

, p. 9689 - 9700 (1998)

Diazoamides 1a and 1b were prepared from 2-(O-allyl)- and 2-(S-allyl) anilines 2 respectively. Copper(II) catalysed decomposition of 1 resulted in formation of benzofused heterocycles 7 by [2,3]-rearrangement of the intermediate ylide. Rhodium(II) perfluorbutyramide catalysed reaction, however, gave mainly the indoles 8, 9 whereas rhodium(II) acetate catalysed reaction resulted in a mixture of products, with β-lactams formed by intramolecular C-H insertion predominating. Catalysed decomposition of N- pyridyl diazoamide 13 gave the stable pyridinium ylide 14.

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