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Raney nickel desulphurisation of some organo-sulphur compounds

✍ Scribed by Kazi Abdul Latif; Dilip Ranjan Choudhury

Publisher
Elsevier Science
Year
1968
Tongue
French
Weight
192 KB
Volume
9
Category
Article
ISSN
0040-4039

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✦ Synopsis

Compounds like thiolesters

(1) and diacylsolphides (2) are known to yield the corresponding aldehydes on treatment with Raney nickel. Under similar conditions, Baddiley (3) obtained ethylbenzene from methylphenyldithioacetate and Cline, Campaigne and Spies (4) obtained trans-o(,fi-dimethylstilbene from thioacetophenone. We report here the Raney nickel desulphurisation of compounds of the type Ar-CO-SS-CO-Ar (I), Ar-CS-SS-CS-Ar (II), (Ar-CBS)3 (III), and Ar-CS-SH as their lead salts (IV). Two types of the catalyst Raney nickel W2 (5) have been used: (a) The catalyst as prepared,was stored under water, but before use,was washed with alcohol and then used in presence of alcohol (let it be designated WZA 1; (b) the catalyst was stored under water,but before use, water was completely removed by azeotropic distillation in presence of benzene, cyclohexane or methylcyclohexane, and experiments were carried

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## Abstract The preparation, according to the slightly modified procedure of Finholt __et al.__, of the following organo‐tin hydrides is described: triethyltin hydride, tri‐__n__‐propyltin hydride, tri‐__n__‐butyltin hydride, triphenyltin hydride, di‐__n__‐propyltin dihydride, di‐__n__‐butyltin dih