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39239-88-8

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39239-88-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 39239-88-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,2,3 and 9 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 39239-88:
(7*3)+(6*9)+(5*2)+(4*3)+(3*9)+(2*8)+(1*8)=148
148 % 10 = 8
So 39239-88-8 is a valid CAS Registry Number.

39239-88-8Upstream product

39239-88-8Relevant articles and documents

N-Acyl Dehydro-α-amino Acids from N-Formyl Dehydro-α-amino Acid Esters

Schoellkopf, Ulrich,Meyer, Rolf

, p. 1469 - 1475 (2007/10/02)

On treatment with methyl potassioisocyanoacetate (2), aldehydes and ketones 1 give N-anionized N-formyl dehydro-α-amino acid methyl esters 3.Compounds 3 with R1 = CH3, R2 = H is obtained by base induced ring opening of methyl 2-oxazoline-4-carboxylate 5. - Acylation of 3, followed by deformation of the intermediates 6, yields N-acyl dehydro α-amino acid methyl esters 7 which can be hydrolyzed to the N-acyl dehydro α-amino-acids 8.

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