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1279714-62-3

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1279714-62-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1279714-62-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,9,7,1 and 4 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1279714-62:
(9*1)+(8*2)+(7*7)+(6*9)+(5*7)+(4*1)+(3*4)+(2*6)+(1*2)=193
193 % 10 = 3
So 1279714-62-3 is a valid CAS Registry Number.

1279714-62-3Relevant articles and documents

Catalytic asymmetric synthesis of γ-substituted vinyl sulfones

Lopez, Rosa,Zalacain, Maitane,Palomo, Claudio

experimental part, p. 2450 - 2457 (2011/05/02)

A fast new entry for the stereoselective construction of γ-substituted vinyl sulfones is presented. The key for success is the use of a readily available chiral secondary amine catalyst that allows the use of base-sensitive β-nitroethyl sulfones as masked β-sulfonyl vinyl anions in conjugate additions. The method performed in a three-step one-pot operation gives access to a great variety of vinyl sulfones in good yields and with excellent enantioselectivities. The method has also been extended to other relatively base-sensitive β-electron-withdrawing-substituted nitroalkanes to afford products with manifold functionality, providing a quick entry to very attractive synthetic intermediates for organic synthesis.

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