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51411-40-6

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51411-40-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 51411-40-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,4,1 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 51411-40:
(7*5)+(6*1)+(5*4)+(4*1)+(3*1)+(2*4)+(1*0)=76
76 % 10 = 6
So 51411-40-6 is a valid CAS Registry Number.

51411-40-6Relevant articles and documents

Synthetic Versatility of N(Silylmethyl)imines: Water-Induced Generation of N-Protonated Azomethine Ylides of Nonstabilized Type and Fluoride-Induced Generation of 2-Azallyl Anions

Tsuge, Otohiko,Kanemasa, Shuji,Hatada, Akira,Matsuda, Koyo

, p. 2537 - 2546 (1986)

N-(Silylmethyl)imines generate N-protonated azomethine ylides of nonstabilized type when treated with water in HMPA, which undergo stereospecific and regioselective cycloadditions with electron-poor olefins affording N-unsubstituted pyrrolidines.On the other hand, fluoride-induced desilylation of the imines leads to 2-azallyl anions which are found to be synthetic equivalents of aminomethyl anion in the Michael additions with electron-poor olefins and nucleophilic additions with carbonyl compounds.

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