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157381-44-7

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157381-44-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157381-44-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,3,8 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 157381-44:
(8*1)+(7*5)+(6*7)+(5*3)+(4*8)+(3*1)+(2*4)+(1*4)=147
147 % 10 = 7
So 157381-44-7 is a valid CAS Registry Number.

157381-44-7Downstream Products

157381-44-7Relevant articles and documents

Zirconium-BINOLate-catalyzed, enantioselective aldol-Tishchenko reactions of aromatic ketone aldols

Schneider, Christoph,Hansch, Markus,Sreekumar, Pankajakshan

, p. 2738 - 2742 (2006)

3,3′-Substituted BINOL's have been identified as suitable chiral ligands for the zirconium-catalyzed aldol-Tishchenko reaction of aromatic ketone aldols with aliphatic aldehydes. 1,3-anti-Diol monoesters were obtained in excellent yields, complete anti-diastereocontrol, and enantioselectivities of up to 60% ee.

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