Cas 155780-34-0,Phenyl-phenylazo-acetic acid methyl ester

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Check Digit Verification of cas no

The CAS Registry Mumber 155780-34-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,7,8 and 0 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 155780-34:
(8*1)+(7*5)+(6*5)+(5*7)+(4*8)+(3*0)+(2*3)+(1*4)=150
150 % 10 = 0
So 155780-34-0 is a valid CAS Registry Number.

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155780-34-0Relevant articles and documents

Reaction of Silyl Enol Ethers with Arenediazonium Salts. Part 2. α-Amination of Esters

Sakakura, Toshiyasu,Hara, Masayasu,Tanaka, Masato

, p. 289 - 294 (1994)

Diazonium salts efficiently serve as electrophilic aminating reagents of esters.The reaction of arenediazonium tetrafluoroborates with ketene silyl ketals yielded α-azo or α-hydrazono esters in good to excellent yields under very mild conditions.Hydrogenation of those esters gave α-amino esters quantitatively.

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155780-34-0