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(2R,3R,4R)-1-Benzyloxy-3-bromo-pentane-2,4-diol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

142991-34-2

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142991-34-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142991-34-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,9,9 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 142991-34:
(8*1)+(7*4)+(6*2)+(5*9)+(4*9)+(3*1)+(2*3)+(1*4)=142
142 % 10 = 2
So 142991-34-2 is a valid CAS Registry Number.

142991-34-2Relevant academic research and scientific papers

Stereoselective reactions of α,β-epoxy-aldehydes; the formation of "chelation controlled" products

Wang, Shouming,Howe, Graham P.,Mahal, Ravinderjit S.,Procter, Garry

, p. 3351 - 3354 (2007/10/02)

Treatment of the α,β-epoxy-aldehydes (l) and (2) with Lewis acids followed by in situ reaction with carbon nucleophiles produces halohydrins of the products of "chelation controlled" addition to the aldehyde with high diastereoselectivity; The regiochemistry of epoxide opening is determined by choice of Lewis acid.

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