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124932-14-5

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124932-14-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124932-14-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,9,3 and 2 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 124932-14:
(8*1)+(7*2)+(6*4)+(5*9)+(4*3)+(3*2)+(2*1)+(1*4)=115
115 % 10 = 5
So 124932-14-5 is a valid CAS Registry Number.

124932-14-5Downstream Products

124932-14-5Relevant articles and documents

Direct conversion of esters to secondary amides using Tin(II) reagents

Wang,Restituyo,Roskamp

, p. 7217 - 7220 (1993)

We have developed tow new procedures for the direct conversion of esters to secondary amides. In our first procedure, secondary amides can be prepared in 83-98% yield starting from glycol esters. Addition of Sn[N(TMS)2]2 and a primary amine to the glycol ester generates an intermediate tin(II) akoxy amide, which delivers the amino group intramolecularly to give the amide. A second general procedure for the preparation of secondary amides starts with methyl esters. Treatment of methyl esters with a tin reagent derived from Sn[N(TMS)2]2, Me2NCH2CH2OH, and a primary amine yields secondary amides in 87-98% yield.

A CONVENIENT SYNTHESIS OF AMIDES FROM CARBOXYLIC ACIDS AND PRIMARY AMINES

Cossy, J.,Pale-Grosdemange, C.

, p. 2771 - 2774 (2007/10/02)

A convenient method for the formation of carboxamides from carboxylic acids and primary amines in the presence of molecular sieves is described.This process is very chemoselective.

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