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76527-23-6

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76527-23-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 76527-23-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,5,2 and 7 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 76527-23:
(7*7)+(6*6)+(5*5)+(4*2)+(3*7)+(2*2)+(1*3)=146
146 % 10 = 6
So 76527-23-6 is a valid CAS Registry Number.

76527-23-6Relevant articles and documents

SYNTHESIS OF α,β-EPOXY DIAZOMETHYL KETONES

Thijs, L.,Smeets, F. L. M.,Cillissen, P. J. M.,Harmsen, J.,Zwanenburg, B.

, p. 2141 - 2144 (2007/10/02)

The preparation of eighteen epoxy diazomethyl ketones 1 is described.Two general methods were developed.Firstly, treatment of the mixed anhydrides of glycidic acids and carbonic acid ester with diazomethane led to the title compounds in yields ranging from 17-74 percent.Secondly, glycidyl chlorides which were obtained from sodium glycidates and oxalyl chloride, gave the desired products upon treatment with diazomethane ( yields 60-74 percent).The required α,β-epoxy carboxylic esters were prepared by Darzens condensation and epoxidation of α,β-unsaturated esters, but in some cases also by reaction of α-oxo carboxylic esters with diazomethane.

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