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34114-57-3

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34114-57-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 34114-57-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,1,1 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 34114-57:
(7*3)+(6*4)+(5*1)+(4*1)+(3*4)+(2*5)+(1*7)=83
83 % 10 = 3
So 34114-57-3 is a valid CAS Registry Number.

34114-57-3Relevant articles and documents

Resolution of racemic 2-amino-1-butanol with immobilised penicillin G acylase

Fadnavis,Sharfuddin, Mohd.,Vadivel

, p. 4495 - 4500 (1999)

Racemic 2-amino-1-butanol has been resolved to obtain (S)-2-amino-1- butanol with >99% e.e. via enantioselective hydrolysis of its N-phenylacetyl derivative with penicillin G acylase immobilised on Eupergit C. (C) 1999 Elsevier Science Ltd.

Ammonium nitrate: A biodegradable and efficient catalyst for the direct amidation of esters under solvent-free conditions

Ramesh, Perla,Fadnavis, Nitin W.

supporting information, p. 138 - 140 (2015/02/19)

A simple, metal-free, and environment-friendly procedure is developed for the direct conversion of esters to amides using ammonium nitrate as a catalyst under solvent-free conditions. Aryls, heteroaryls, and aliphatic esters are easily converted to the corresponding amides in excellent isolated yields (85-99%). An enantiopure ester and amine were both shown to react without racemization. The methodology has been successfully applied to preparation of procainamide.

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