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329686-57-9

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329686-57-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 329686-57-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,9,6,8 and 6 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 329686-57:
(8*3)+(7*2)+(6*9)+(5*6)+(4*8)+(3*6)+(2*5)+(1*7)=189
189 % 10 = 9
So 329686-57-9 is a valid CAS Registry Number.

329686-57-9Downstream Products

329686-57-9Relevant articles and documents

Rapid procedure for N-phthaloylation of α-amino carboxamides, α-amino alcohols, α-amino esters and dipeptide derivatives

Casimir,Guichard,Tourwe,Briand

, p. 1985 - 1988 (2001)

A rapid, one-pot synthesis and mild procedure for the N-phthaloylation of α-amino carboxamides is described. In acetonitrile, these derivatives react with mono-methylphthalate in the presence of BOP and i-Pr2NEt to afford the intermediate Nα-[(o-methoxycarbonyl)benzoyl]amino carboxamides, which undergo rapid cyclization in the presence of aqueous sodium carbonate to afford the corresponding Nα-phthaloylamino carboxamides in excellent yields. The reaction also works efficiently with α-amino esters, α-amino alcohols and dipeptide esters or amides.

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