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958643-19-1

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958643-19-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 958643-19-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,8,6,4 and 3 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 958643-19:
(8*9)+(7*5)+(6*8)+(5*6)+(4*4)+(3*3)+(2*1)+(1*9)=221
221 % 10 = 1
So 958643-19-1 is a valid CAS Registry Number.

958643-19-1Relevant articles and documents

Synthesis and reactivity of 1-substituted 2-fluoro- and 2,2-difluoroaziridines

Verniest, Guido,Colpaert, Filip,Van Hende, Eva,De Kimpe, Norbert

, p. 8569 - 8572 (2008/02/13)

(Chemical Equation Presented) A straightforward synthesis toward 2-fluorinated aziridines was developed via ring closure of β-fluorinated β-chloroamines, which were obtained via reduction of the corresponding α-fluorinated amides by borane. When 1-benzyl-2-fluoroaziridine was treated with methanol, reaction occurred at the 2-position, giving rise to N-benzyl-2,2-dimethoxyethylamine, while in the case of 1-benzyl-2,2- difluoroaziridine the 3-position was attacked, giving rise to N-benzyl-2-methoxyacetamide. These reactions point to the divergent reactive behavior of monofluoro- and difluoroaziridines.

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