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(E)-(R)-5-(tert-Butyl-diphenyl-silanyloxy)-5-phenyl-pent-3-en-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

201422-57-3

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201422-57-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 201422-57-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,4,2 and 2 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 201422-57:
(8*2)+(7*0)+(6*1)+(5*4)+(4*2)+(3*2)+(2*5)+(1*7)=73
73 % 10 = 3
So 201422-57-3 is a valid CAS Registry Number.

201422-57-3Downstream Products

201422-57-3Relevant academic research and scientific papers

Stereoselective 1,4-addition of Grignard reagents to chiral γ-alkoxy-α,β-unsaturated ketones

Raczko, Jerzy

, p. 3821 - 3828 (1997)

Copper-catalyzed conjugate addition reactions of Grignard reagents to γ-alkoxy-α,β-unsaturated ketones, derived from mandelic acid, have been studied. Diastereoselectivity is strongly dependent on the nature of the γ-alkoxy protection group. Bulky silyl protection gives poor stereoselectivities, whereas the ketone bearing benzyloxymethylene (BOM) protection reacts with excellent yields and stereoselectivities.

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