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17957-36-7

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17957-36-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17957-36-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,9,5 and 7 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 17957-36:
(7*1)+(6*7)+(5*9)+(4*5)+(3*7)+(2*3)+(1*6)=147
147 % 10 = 7
So 17957-36-7 is a valid CAS Registry Number.

17957-36-7Downstream Products

17957-36-7Relevant articles and documents

Salt-free preparation of trimethylsilyl ethers by B(C6F 5)3-catalyzed transfer silylation by using a Me 3SiH surrogate

Simonneau, Antoine,Friebel, Jonas,Oestreich, Martin

supporting information, p. 2077 - 2083 (2014/04/17)

An unprecedented transfer silylation of alcohols catalyzed by the strong Lewis acid B(C6F5)3 is described. Gaseous Me3SiH is released in situ by B(C6F5) 3-catalyzed decomposition of 3-trimethylsilylcyclohexa-1,4-diene and subsequently reacts with an alcohol in a dehydrogenative Si-O coupling promoted by the same boron catalyst. Benzene and dihydrogen are formed during the reaction, but no salt waste is. This expedient protocol is applicable to several silicon groups, and the preparation of trimethylsilyl ethers presented here is potentially useful for alcohol derivatization prior to GLC analysis. Copyright

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