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220358-42-9

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220358-42-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 220358-42-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,3,5 and 8 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 220358-42:
(8*2)+(7*2)+(6*0)+(5*3)+(4*5)+(3*8)+(2*4)+(1*2)=99
99 % 10 = 9
So 220358-42-9 is a valid CAS Registry Number.

220358-42-9Upstream product

220358-42-9Relevant articles and documents

Intramolecular 1,5-hydrogen atom transfer radical reaction of pyrrolidine derivatives

Ishizaki, Miyuki,Takano, Hideaki,Hoshino, Osamu

, p. 305 - 314 (2007/10/03)

Intramolecular 1,5-hydrogen atom transfer radical cyclization reaction of pyrrolidine derivatives was examined. Radical reaction of 3,4-bis(α,β- unsaturated acyloxy)-(8, 9) and 3,4-diacetoxy (13)-N-[(o- halobenzyl)pyrrolidines underwent elimination of two acyloxy groups to give mainly N-benzylpyrrole (11). On the other hand, the similar reaction of 3,4- diallyloxy-N-(o-bromobenzyl)pyrrolidine (16) gave desired hexahydrofuro[3,2- b]pyrroles (17, 18) together with a dimeric hexahydrofuro[3,2-b]pyrrole (19).

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