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100972-49-4

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100972-49-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 100972-49-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,9,7 and 2 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 100972-49:
(8*1)+(7*0)+(6*0)+(5*9)+(4*7)+(3*2)+(2*4)+(1*9)=104
104 % 10 = 4
So 100972-49-4 is a valid CAS Registry Number.

100972-49-4Downstream Products

100972-49-4Relevant articles and documents

The Catalytic Asymmetric Mukaiyama–Michael Reaction of Silyl Ketene Acetals with α,β-Unsaturated Methyl Esters

Gatzenmeier, Tim,Kaib, Philip S. J.,Lingnau, Julia B.,Goddard, Richard,List, Benjamin

, p. 2464 - 2468 (2018/02/06)

α,β-Unsaturated esters are readily available but challenging substrates to activate in asymmetric catalysis. We now describe an efficient, general, and highly enantioselective Mukaiyama–Michael reaction of silyl ketene acetals with α,β-unsaturated methyl esters that is catalyzed by a silylium imidodiphosphorimidate (IDPi) Lewis acid.

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