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438497-46-2

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438497-46-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 438497-46-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,8,4,9 and 7 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 438497-46:
(8*4)+(7*3)+(6*8)+(5*4)+(4*9)+(3*7)+(2*4)+(1*6)=192
192 % 10 = 2
So 438497-46-2 is a valid CAS Registry Number.

438497-46-2Relevant articles and documents

Kinetic resolution of allylic alcohols promoted by electrophilic selenium reagents

Santi,Tiecco,Testaferri,Tomassini,Marini,Bagnoli,Temperini

, p. 1071 - 1075 (2007/10/03)

The first example of a kinetic resolution process promoted by an electrophilic selenium reagent is reported. Racemic allylic alcohols react with half equivalents of a selenenylating agent in methanol leading to the regiospecific formation of the corresponding addition products with a very high level of facial selectivity (98% de). The unreacted alcohol can be recovered in a optically enriched form (92% ee). Copyright Taylor & Francis Inc.

Asymmetric azidoselenenylation of alkenes: A key step for the synthesis of enantiomerically enriched nitrogen-containing compounds

Tiecco, Marcello,Testaferri, Lorenzo,Santi, Claudio,Tomassini, Cristina,Marini, Francesca,Bagnoli, Luana,Temperini, Andrea

, p. 3131 - 3133 (2007/10/03)

Chiral, nonracemic azidoselenides such as 2 are useful intermediates for the synthesis of enantiomerically enriched nitrogen-containing compounds (e.g. 3). The asymmetric electrophilic azidoselenenylation of a variety of alkenes with the sulfur-containing

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