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114454-97-6

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114454-97-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 114454-97-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,4,4,5 and 4 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 114454-97:
(8*1)+(7*1)+(6*4)+(5*4)+(4*5)+(3*4)+(2*9)+(1*7)=116
116 % 10 = 6
So 114454-97-6 is a valid CAS Registry Number.

114454-97-6Downstream Products

114454-97-6Relevant articles and documents

Enantioselective Saponification of Diacetates of 2-Nitro-1,3-propanediols by Pig-Liver Esterase and Preparation of Enantiomerically Pure Derivatives of 2-Nitro-allylic Alcohols (Chiral Multiple-Coupling Reagents)

Eberle, Martin,Egli, Martin,Seebach, Dieter

, p. 1 - 23 (2007/10/02)

The reproducible enantioselective saponification of open-chain and cyclic diacetates of meso-2-nitro-1,3-propanediols (see 4b-13b) with pig-liver esterase (PLE) gives monoacetates (see 4c-13c) of >95percent enantiomeric excess.The Re enantiotopic acetate group appears to be saponified preferentially, as proved by the X-ray crystal structure analysis of three camphanoates 4d, 6d, and 7d.Elimination of H2O or AcOH from the hydroxy acetates thus available gives derivatives of nitro-allylic alcohols (see 20-24, 27, and 29) which are subjected to diastereoselective Michael additions or SN2' substitutions.

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