Carbon–carbon bond forming desulphurisation of a tetrathiane
Abstract
The 1,2,4,5-tetrathiane (3), readily formed from amido ester (2) and disulphur dichloride, undergoes immediate reaction with potassium hydroxide in ethanol at room temperature to form sulphur and the maleimide salt (6) which is characterised as its S-benzyl and S-methyl (4) derivatives; a mechanism is proposed for this mild carbon–carbon bond forming desulphurisation reaction.