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218768-05-9

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218768-05-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 218768-05-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,8,7,6 and 8 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 218768-05:
(8*2)+(7*1)+(6*8)+(5*7)+(4*6)+(3*8)+(2*0)+(1*5)=159
159 % 10 = 9
So 218768-05-9 is a valid CAS Registry Number.

218768-05-9Relevant articles and documents

Kinetic Resolution of 2-N-Acylamido Tertiary Allylic Alcohols: Asymmetric Synthesis of Oxazolines

Pan, Yongkai,Jiang, Qianwen,Rajkumar, Subramani,Zhu, Chaofan,Xie, Jinglei,Yu, Shaoze,Chen, Yunrong,He, Yu-Peng,Yang, Xiaoyu

, p. 200 - 207 (2021)

A series of cyclohexyl-fused SPINOL-derived phosphoric acids (Cy-SPA) have been developed to catalyze the kinetic resolution of 2-N-acylamido tertiary allylic alcohols, providing access to chiral oxazolines bearing C-2 alkyl substituents with high enantioselectivities (with s-factors up to 153). Gram-scale reaction with 1 mol% catalyst loading and transformations of the chiral products demonstrates the value of these methods. (Figure presented.).

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