142720-12-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142720-12-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,7,2 and 0 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 142720-12:
(8*1)+(7*4)+(6*2)+(5*7)+(4*2)+(3*0)+(2*1)+(1*2)=95
95 % 10 = 5
So 142720-12-5 is a valid CAS Registry Number.
142720-12-5Relevant articles and documents
α-Amidoalkylation of Ambident Nucleophiles by Means of N-Benzoylbenzaldimine
Dobrev, Alexander,Benin, Vladimir,Nechev, Lubomir
, p. 863 - 866 (2007/10/02)
tert-Butyl esters 1a-c and N,N-disubstituted amides 1d-h of carboxylic acids as well as N-substituted pyrrolidinones 1i,j and 3-morpholinone 1k are α-amidoalkylated with N-benzoylbenzylideneamine (2).The stereochemical course of the reaction is discussed.
