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201803-61-4

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201803-61-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 201803-61-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,8,0 and 3 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 201803-61:
(8*2)+(7*0)+(6*1)+(5*8)+(4*0)+(3*3)+(2*6)+(1*1)=84
84 % 10 = 4
So 201803-61-4 is a valid CAS Registry Number.

201803-61-4Downstream Products

201803-61-4Relevant articles and documents

Potassium tert-butoxide-catalyzed dehydrogenative Si-O coupling: Reactivity pattern and mechanism of an underappreciated alcohol protection

Weickgenannt, Andreas,Oestreich, Martin

experimental part, p. 406 - 410 (2010/06/17)

A remarkable fen-butoxide-catalyzed coupling of alcohols and silanes is reported. Dihydrogen and not hydrochloric acid (generated in the prevalent, related coupling of alcohols and chlorosilanes) is formed as the sole by-product. A comprehensive survey of common silanes provides a reliable tool for the predictability of their reactivity under defined reaction conditions. The debated mechanism of this transformation is investigated monitoring the stereochemical course at the silicon atom by means of a silicon-stereogenic silane. On this basis, a transition state for the enantiospecific Si-O coupling step is suggested rationalizing the observed frontside attack and thus retention at the silicon atom.

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