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1313990-75-8

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1313990-75-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1313990-75-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,1,3,9,9 and 0 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1313990-75:
(9*1)+(8*3)+(7*1)+(6*3)+(5*9)+(4*9)+(3*0)+(2*7)+(1*5)=158
158 % 10 = 8
So 1313990-75-8 is a valid CAS Registry Number.

1313990-75-8Downstream Products

1313990-75-8Relevant articles and documents

Kinetic resolution of α-Methylene- β- Hydroxy esters catalyzed by Acyl transfer catalyst An -PIQ

Jiang, Shan-Shan,Xu, Qin-Chang,Zhu, Ming-Yu,Yu, Xingxin,Deng, Wei-Ping

, p. 3159 - 3169 (2015)

A highly efficient nonenzymatic kinetic resolution of a series of structurally diverse racemic α-methylene-β-hydroxy esters utilizing the acyl transfer catalyst An-PIQ and propionic anhydride is reported. This procedure provides recovered alcohols with extremely high ee's (up to >99%) in reasonable conversions and excellent selectivity factors (S up to 108). Several synthetically important substrates were resolved in gram-scale reactions, and highly optically pure α-methylene-β-hydroxy esters were obtained with excellent S values and good yields.

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