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127392-99-8

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127392-99-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127392-99-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,3,9 and 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 127392-99:
(8*1)+(7*2)+(6*7)+(5*3)+(4*9)+(3*2)+(2*9)+(1*9)=148
148 % 10 = 8
So 127392-99-8 is a valid CAS Registry Number.

127392-99-8Relevant articles and documents

Enantioconservative synthesis and ring closing metathesis of disubstituted dialkenic amides

Sauriat-Dorizon, Helene,Guibe, Francois

, p. 6711 - 6714 (1998)

Optically pure disubstituted dialkenic amides 2, which are direct precursors of Z-ethylenic pseudo-peptides 1, are readily synthesized and then cyclized to lactams 3 in the presence of Grubbs' ruthenium-based metathesis catalysts with total conservation of enantiomeric purity.

ASYMMETRIC ALKYLATION OF N-ACYLSULTAMS: A GENERAL ROUTE TO ENANTIOMERICALLY PURE, CRYSTALLINE C(α,α)-DISUBSTITUTED CARBOXYLIC ACID DERIVATIVES.

Oppolzer, Wolfgang,Moretti, Robert,Thomi, Silvia

, p. 5603 - 5606 (2007/10/02)

Successive treatment of acylsultams 2 with nBuLi or NHMDS and primary alkyl halides, followed by crystallization, gave pure C(α)-alkylation products 4 and, via their non-destructive cleavage, enantiomerically pure alcohols 5 or carboxylic acids 6.

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