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190913-46-3

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190913-46-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 190913-46-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,9,1 and 3 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 190913-46:
(8*1)+(7*9)+(6*0)+(5*9)+(4*1)+(3*3)+(2*4)+(1*6)=143
143 % 10 = 3
So 190913-46-3 is a valid CAS Registry Number.

190913-46-3Relevant articles and documents

Atropisomeric amides: Stereoselective enolate chemistry and enantioselective synthesis via a new SmI2-mediated reduction

Hughes, Adam D.,Price, David A.,Simpkins, Nigel S.

, p. 1295 - 1304 (2007/10/03)

The use of certain types of atropisomeric amides, incorporating an N-MEM-ortho-tert-bityariume group, for stereoselective reactions, has been explored. Enolate reactions of these systems are highly diastereocontrolled, and enantiomerically enriched starting materials can be obtained, starting from lactic acid, via a new SmI2 mediated reduction process.

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