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212392-64-8

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212392-64-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 212392-64-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,2,3,9 and 2 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 212392-64:
(8*2)+(7*1)+(6*2)+(5*3)+(4*9)+(3*2)+(2*6)+(1*4)=108
108 % 10 = 8
So 212392-64-8 is a valid CAS Registry Number.

212392-64-8Relevant articles and documents

Asymmetric Cyanosilylation of Ketones Catalyzed by Bifunctional Chiral N-Oxide Titanium Complex Catalysts

Shen, Yongcun,Feng, Xiaoming,Li, Yan,Zhang, Guolin,Jiang, Yaozhong

, p. 129 - 137 (2004)

A new bifunctional catalytic system based on chiral N-oxide titanium complexes has been used for the asymmetric cyanosilylation of ketones. Screening of a variety of chiral N-oxide metal complexes resulted in (1R,2S)-1-(2'-pyridylmethyl)-2-(diphenylhydroxymethyl)pyrrolidine N-oxide titanium complex, which gave O-TMS cyanohydrins in good yields with enantiometric excesses of up to 69 percent. A catalytic cycle based on experimental phenomena and studies was proposed to explain the origin of the asymmetric induction.

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