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156022-76-3

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156022-76-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 156022-76-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,0,2 and 2 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 156022-76:
(8*1)+(7*5)+(6*6)+(5*0)+(4*2)+(3*2)+(2*7)+(1*6)=113
113 % 10 = 3
So 156022-76-3 is a valid CAS Registry Number.

156022-76-3Relevant articles and documents

Asymmetric synthesis; XXXVII: Synthesis of 2,6-disubstituted piperazines from chiral non-racemic lactams

Schanen, Vincent,Cherrier, Marie-Pierre,De Melo, Sebastiào Jose,Quirion, Jean-Charles,Husson, Henri-Philippe

, p. 833 - 837 (2007/10/03)

General and convenient syntheses of optically active 2,6-disubstituted piperazines are described. The method is based on diastereoselective alkylation of lactam 8 derived from (R)-(-)-phenylglycinol followed by a regio- and diastereoselective functionalisation of carbamates 10c and 10d. This procedure allowed the preparation of new α-amino acids 15 and 16.

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