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(2R,3R)-3-[(E)-(S)-3-((S)-tert-Butyl-phenyl-phosphinoyl)-1-methyl-allyl]-2-methyl-2-(3-oxo-butyl)-cyclopentanone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

133253-02-8

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133253-02-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133253-02-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,2,5 and 3 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 133253-02:
(8*1)+(7*3)+(6*3)+(5*2)+(4*5)+(3*3)+(2*0)+(1*2)=88
88 % 10 = 8
So 133253-02-8 is a valid CAS Registry Number.

133253-02-8Relevant academic research and scientific papers

The Preparation of (R)- and (S)-(E)-But-2-enyl-t-butylphenylphosphine Oxides and their Enantiospecific Conversion into Enantiomeric Hydrindenones related to Vitamin D

Haynes, Richard K.,Stokes, John P.,Hambley, Trevor W.

, p. 58 - 60 (2007/10/02)

The individual enantiomers of (E)-but-2-enyl-t-butylphenylphosphine oxide have been prepared, and the lithiated carbanions of each undergo completely stereoselective conjugate addition with 2-methylcyclopent-2-enone to generate enolates, which upon reacti

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