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157945-01-2

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157945-01-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157945-01-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,9,4 and 5 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 157945-01:
(8*1)+(7*5)+(6*7)+(5*9)+(4*4)+(3*5)+(2*0)+(1*1)=162
162 % 10 = 2
So 157945-01-2 is a valid CAS Registry Number.

157945-01-2Relevant articles and documents

A practical synthesis of the C1-C9 fragment of dictyostatin

Zanato, Chiara,Pignataro, Luca,Hao, Zhongyan,Gennari, Cesare

experimental part, p. 2158 - 2162 (2009/04/04)

A stereoselective synthesis of the C1-C9 fragment of (-)-dictyostatin has been achieved by use of a titanium(IV) chloride mediated chelation-controlled Mukaiyama aldol reaction and two modified Horner-Wadsworth-Emmons olefinations (Roush-Masamune and Stil

Reagent control in the aldol addition reaction of chiral boron enolates with chiral aldehydes

Gennari, Cesare,Moresca, Daniela,Vulpetti, Anna,Pain, Gilles

, p. 4623 - 4626 (2007/10/02)

Boron enolates bearing menthone-derived chiral ligands are capable of fair to excellent diastereocontrol in their reactions with chiral aldehydes. Thioester-derived (better than ketone derived) enolates are able to control aldol stereochemistry irrespective of the aldehyde preferences.

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