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1194757-37-3

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1194757-37-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1194757-37-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,4,7,5 and 7 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1194757-37:
(9*1)+(8*1)+(7*9)+(6*4)+(5*7)+(4*5)+(3*7)+(2*3)+(1*7)=193
193 % 10 = 3
So 1194757-37-3 is a valid CAS Registry Number.

1194757-37-3Relevant articles and documents

An enantioselective synthesis of nitrogen protected 3-arylserine esters

Bourdon, Lisa H.,Fairfax, David J.,Martin, Gregory S.,Mathison, Casey J.,Zhichkin, Pavel

, p. 3485 - 3487 (2007/10/03)

A method for the preparation of (2R,3S) nitrogen protected arylserine esters is described. The method consists of rhodium mediated insertion of tert-butylcarbamate into the corresponding 3-keto-2-diazoester, affording the N-protected α-amino-β-ketoester, followed by asymmetric reduction/dynamic resolution to afford the corresponding N-protected 3-arylserine esters in good chemical yield, and in most cases high enantiomeric excess.

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