Sulfuric Acid → diphenylthiosulfinate

Participants

Reaction Steps

To a solution of 2.2 g. (20 mmol) thiophenol in 30 ml. dry ether one adds 1.8 g. pyridine and adds dropwise thereto, with cooling, a solution of 3.2 g. (20 mmol) benzenesulphinic acid chloride in 20 ml. dry ether. One allows to stir further for 10 min., pours into dil. sulphuric acid, separates off the organic phase, dries and evaporates. There remain 3.2 g. of the title compound (68% of theory) of the m.p. 69°-70° C. (from ligroin).

Provenance & Evidence