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1057253-65-2

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1057253-65-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1057253-65-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,5,7,2,5 and 3 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1057253-65:
(9*1)+(8*0)+(7*5)+(6*7)+(5*2)+(4*5)+(3*3)+(2*6)+(1*5)=142
142 % 10 = 2
So 1057253-65-2 is a valid CAS Registry Number.

1057253-65-2Relevant articles and documents

Comparative approaches toward diamines containing spatially separated homobenzylic and benzylic nitrogen stereocenters

Achmatowicz, Michal,Chan, Johann,Wheeler, Philip,Liu, Longbin,Faul, Margaret M.

, p. 4825 - 4829 (2008/02/05)

Several synthetic strategies to diamines 1-3 are described. The optimum approach via opening of aziridine afforded 1-3 in 29-60% yield over 3-5 steps. A study on formation of the benzylic stereocenter using Toste's rhenium-catalyzed asymmetric reduction of phosphinyl ketimines was also evaluated and afforded 15 in 92% de.

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