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33733-78-7

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33733-78-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33733-78-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,7,3 and 3 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 33733-78:
(7*3)+(6*3)+(5*7)+(4*3)+(3*3)+(2*7)+(1*8)=117
117 % 10 = 7
So 33733-78-7 is a valid CAS Registry Number.

33733-78-7Relevant articles and documents

Palladium-catalyzed intermolecular transthioetherification of aryl halides with thioethers and thioesters

Li, Yahui,Bao, Gao,Wu, Xiao-Feng

, p. 2187 - 2192 (2020/03/11)

Functional group transfer reactions are an important synthetic tool in modern organic synthesis. Herein, we developed a new palladium-catalyzed intermolecular transthioetherification reaction of aryl halides with thioethers and thioesters. The synthetic utility and practicality of this catalytic protocol are demonstrated in a wide range of successful transformations (>70 examples). This catalytic protocol is applicable in carbonylative coupling processes as well, and the first example of carbonylative methylthioesterification of aryl halides has been achieved. Notably, this work also provides an approach to using natural products, such as methionine and selenomethionine, as the functional group sources.

A Simple Synthesis of Alkoxyaryl Alkyl Sulphides from Dichlorobenzene Derivatives

Chianelli, Donatella,Testaferri, Lorenzo,Tiecco, Marcello,Tingoli, Marco

, p. 475 - 478 (2007/10/02)

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