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129939-53-3

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129939-53-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129939-53-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,9,3 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 129939-53:
(8*1)+(7*2)+(6*9)+(5*9)+(4*3)+(3*9)+(2*5)+(1*3)=173
173 % 10 = 3
So 129939-53-3 is a valid CAS Registry Number.

129939-53-3Relevant articles and documents

Regiospecific reductive cleavage of the C(2)-N bond of aziridines substituted with an electron acceptor mediated by Mg/MeOH

Pak, Chwang Siek,Kim, Tae Hoon,Ha, Sung Jin

, p. 10006 - 10010 (1998)

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Reaction of vinyl triflates of α-keto esters with primary amines: Efficient synthesis of aziridine carboxylates

Tranchant, Marie-José,Dalla, Vincent,Jabin, Ivan,Decroix, Bernard

, p. 8425 - 8432 (2007/10/03)

Vinyl triflates of α-keto esters react smoothly with primary amines to provide aziridine carboxylates in good yields. In all cases, little or no stereoselectivity was observed. A mechanistic study has shown that aziridine carboxylates are strictly formed

A convenient synthesis of aziridine-2-carboxylic esters

Legters, Johan,Thijs, Lambertus,Zwanenburg, Binne

, p. 1 - 15 (2007/10/02)

Optically active oxirane-2-carboxylic esters, prepared from allylic alcohols employing the Sharpless epoxidation, were treated with sodium azide.The azido alcohols obtained were subsequently converted into aziridine-2-carboxylic esters by reaction with triphenylphosphine, in good yields and with high optical purity.Various racemic oxirane-2-carboxylic esters were subjected to the same sequence of reactions.

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