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1202039-13-1

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1202039-13-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1202039-13-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,2,0,3 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1202039-13:
(9*1)+(8*2)+(7*0)+(6*2)+(5*0)+(4*3)+(3*9)+(2*1)+(1*3)=81
81 % 10 = 1
So 1202039-13-1 is a valid CAS Registry Number.

1202039-13-1Relevant articles and documents

Asymmetric synthesis of Sedum alkaloids via lithium amide conjugate addition

Davies, Stephen G.,Fletcher, Ai M.,Roberts, Paul M.,Smith, Andrew D.

experimental part, p. 10192 - 10213 (2010/02/28)

Conjugate addition of lithium (R)-N-allyl-N-(α-methylbenzyl)amide or lithium (R)-N-but-3-enyl-N-(α-methylbenzyl)amide to an alkyl hexa-2,4-dienoate or alkyl hepta-2,6-dienoate, followed by ring-closing metathesis of the olefin functionalities within the resultant β-amino ester, generates a range of diastereoisomerically pure azacycles in good yield. These homochiral templates are readily transformed to a range of piperidine alkaloids of the Sedum family, and the corresponding five-, seven- and eight-membered ring homologues.

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