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[4-Methyl-1,3-dihydro-benzo[b][1,4]diazepin-(2E)-ylidene]-acetic acid isopropyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

127782-84-7

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127782-84-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127782-84-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,7,8 and 2 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 127782-84:
(8*1)+(7*2)+(6*7)+(5*7)+(4*8)+(3*2)+(2*8)+(1*4)=157
157 % 10 = 7
So 127782-84-7 is a valid CAS Registry Number.

127782-84-7Downstream Products

127782-84-7Relevant academic research and scientific papers

Dehydroacetic acid, precursor of benzodiazepine synthesis

El Abbassi,Djerrari,Essassi,Fifani

, p. 7069 - 7070 (2007/10/02)

Reaction of o-phenylenediamine 1 with dehydracetic acid 2 in different alcohols leads to 2-alkoxycarbonylmethyl 4-methyl 1,5-benzodiazepines 3-7, to 4-acetyl methylene 1,5-benzodiazepin-2-one 8, and to benzimidazoles 9 and 10. This constitutes a novel and efficient synthesis of some benzodiazepine derivatives.

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