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134340-63-9

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134340-63-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134340-63-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,3,4 and 0 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 134340-63:
(8*1)+(7*3)+(6*4)+(5*3)+(4*4)+(3*0)+(2*6)+(1*3)=99
99 % 10 = 9
So 134340-63-9 is a valid CAS Registry Number.

134340-63-9Relevant articles and documents

Chiral binaphthylthiophosphoramide - Cu(I)-catalyzed asymmetric addition of diethylzinc to N-sulfonylimines

Wang, Chun-Jiang,Shi, Min

, p. 6229 - 6237 (2003)

In the presence of a catalytic amount of chiral binaphthylthiophosphoramide L2 (6 mol %) and Cu(I) (3 mol %), the asymmetric addition of diethylzinc to N-sulfonylimines could be achieved in good yields with moderate to high ee (63-93% ee) at 0 °C in tolue

Synthesis of 2-aza-1-cyano-4-hydroxyanthraquinones

Claessens, Sven,Jacobs, Jan,De Kimpe, Norbert

, p. 741 - 744 (2008/01/06)

Phthalide annulation of 2-alkylpyridin-3-ones results in the formation of the unexpected 2-aza-1-cyano-4-hydroxy-anthraquinones, the cyano moiety originating from the 3-cyanophthalide. These compounds hold great potential against Epstein-Barr Virus Early

An efficient preparation of optically active α-furfuryl amide by kinetic resolution using the modified Sharpless asymmetric epoxidation reagents

Zhou,Lu,Wang

, p. 2641 - 2654 (2007/10/02)

Kinetic resolution of α-furfuryl amide was first carried out by using the modified Sharpless asymmetric epoxidation reagent to give the slow-reacting enantiomers, (S)-1(a-h) and (R)-1(b,f) in high enantioselectivity (90-100% e.e) and high chemical yield (

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