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79841-57-9

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79841-57-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 79841-57-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,8,4 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 79841-57:
(7*7)+(6*9)+(5*8)+(4*4)+(3*1)+(2*5)+(1*7)=179
179 % 10 = 9
So 79841-57-9 is a valid CAS Registry Number.

79841-57-9Upstream product

79841-57-9Relevant articles and documents

Synthesis and Chemical Behaviour of Thioacylsilanes (Silyl Thioketones). Part 1. Oxidation to S-Oxides, Conversion into Silylated Thiiranes, Silylated Triarylethylenes, and α-Silylated Sulphides

Barbaro, Gaetano,Battaglia, Arturo,Giorgianni, Patrizia,Maccagnani, Gaetano,Macciantelli, Dante,et al.

, p. 381 - 386 (2007/10/02)

Trimethylsilyl and triphenylsilylaryl thioketones have been synthesized by acid catalysed reaction of the corresponding ketones with hydrogen sulphide.Such silylated thioketones heve been oxidized to give S-oxides and converted with diaryldiazomethanes into triaryl thiiranes; upon treatment with organolithium nucleophiles they undergo thiophilic addition.The ready desulphurization with triphenylphosphine of silylated thiirans to the corresponding silyl triaryl ethylenes is also reported.

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