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110452-52-3

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110452-52-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 110452-52-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,0,4,5 and 2 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 110452-52:
(8*1)+(7*1)+(6*0)+(5*4)+(4*5)+(3*2)+(2*5)+(1*2)=73
73 % 10 = 3
So 110452-52-3 is a valid CAS Registry Number.

110452-52-3Downstream Products

110452-52-3Relevant articles and documents

Asymmetric Synthesis of Proline Derivatives from (2R) and (2S)-2-tert-Butyl-3-Benzoyl-4-Methyleneoxazolidin-5-one

Pyne, Stephen G.,Javidan, Abdollah,Skelton, Brian W.,White, Allan H.

, p. 5157 - 5168 (1995)

The conjugate addition of enamines (2a,b) to the chiral oxazolidinones (1) or ent-(1) favours cis 2,4-substituted oxazolidinone adducts while trans 2,4-substituted oxazolidinone adducts are favoured from the addition reactions of enamine (2c).The diastereomeric adducts from the addition of (2a) to (1) are readily separated and can be converted to (5R,2S) and (5S,2R) 5-iso-propyl proline efficiently and in good overall yield.The extenstion of this protocol to the synthesis of perhydroindole carboxylic acid suffered from poor overall stereochemical control.

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