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915134-81-5

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915134-81-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 915134-81-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,5,1,3 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 915134-81:
(8*9)+(7*1)+(6*5)+(5*1)+(4*3)+(3*4)+(2*8)+(1*1)=155
155 % 10 = 5
So 915134-81-5 is a valid CAS Registry Number.

915134-81-5Relevant articles and documents

Highly efficient asymmetric additions of diethylzinc to aldehydes triply activated by chiral phosphoramide-Zn(II) complexes derived from cinchona alkaloids

Shen, Bin,Huang, Huayin,Bian, Guangling,Zong, Hua,Song, Ling

, p. 561 - 566 (2013/09/12)

New chiral phosphoramide ligands derived from cinchona alkaloids were developed, which react with diethylzinc to form chiral phosphoramide-Zn(II) complexes containing two Lewis bases and one Lewis acid. These trifunctional complexes can serve as highly efficient chiral catalysts for triple activation of enantioselective addition reactions of diethylzinc with aldehydes to give desired alcohol products with excellent yields and enantiomeric excess (ee) values up to 99%. 2013 Wiley Periodicals, Inc.

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