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40952-48-5

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40952-48-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40952-48-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,9,5 and 2 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 40952-48:
(7*4)+(6*0)+(5*9)+(4*5)+(3*2)+(2*4)+(1*8)=115
115 % 10 = 5
So 40952-48-5 is a valid CAS Registry Number.

40952-48-5Relevant articles and documents

Synthesis of aryl thioethers through the N -chlorosuccinimide-promoted cross-coupling reaction of thiols with Grignard reagents

Cheng, Jun-Hao,Ramesh, Chintakunta,Kao, Hsin-Lun,Wang, Yu-Jen,Chan, Chien-Ching,Lee, Chin-Fa

, p. 10369 - 10374 (2013/01/15)

A convenient one-pot approach for the synthesis of aryl sulfides through the coupling of thiols with Grignard reagents in the presence of N-chlorosuccinimide is described. The sulfenylchlorides were formed when thiols were treated with N-chlorosuccinimide, and the resulting sulfenylchlorides were then directly reacted with Grignard reagents to provide aryl sulfides in good to excellent yields under mild reaction conditions. Functional groups including ester, fluoro, and chloro are tolerated by the reaction conditions employed. It is important to note that this method has a short reaction time (30 min in total) and represents an alternative approach for the synthesis of aryl sulfides over the existing protocols.

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