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1243579-13-6

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1243579-13-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1243579-13-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,3,5,7 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1243579-13:
(9*1)+(8*2)+(7*4)+(6*3)+(5*5)+(4*7)+(3*9)+(2*1)+(1*3)=156
156 % 10 = 6
So 1243579-13-6 is a valid CAS Registry Number.

1243579-13-6Downstream Products

1243579-13-6Relevant articles and documents

Asymmetric reduction of aliphatic ketones and acyl silanes using chiral anti-pentane-2,4-diol and a catalytic amount of 2,4-dinitrobenzenesulfonic acid

Matsuo, Jun-Ichi,Hattori, Yu,Hashizume, Mio,Ishibashi, Hiroyuki

scheme or table, p. 6062 - 6069 (2010/10/02)

Aliphatic ketones were reduced to the corresponding secondary alcohols by using anti-1,3-diol and a catalytic amount of 2,4-dinitrobenzenesulfonic acid (DNBSA) in benzene at reflux. Addition of 1-octanethiol in that media improved the efficiency of the reduction. Asymmetric reduction of aliphatic ketones was performed by using chiral anti-pentane-2,4-diol, and highly asymmetric induction (up to >99% ee) was observed in the reduction of tert-alkyl ketones. Asymmetric reduction of acyl silanes using chiral anti-pentane-2,4-diol and DNBSA proceeded efficiently in the absence of octanethiol and the corresponding α-silyl alcohols were obtained in high yields with high ees.

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