Sulfuryl chloride → HCID 20558380, compound

Participants

Reaction Steps

A solution of 0.50 g (2.31 mol) of dimethyl 2-(3-tetrahydrothienylidene)malonate in 10 ml of toluene was treated with 0.32 g (2.35 mmole) of sulfuryl chloride in 1 ml of toluene under nitrogen at ice bath temperature. The mixture turned dark, and starting material could not be observed by tlc after 5 min. Nitrogen was bubbled through the solution for 5 min., and the dark color faded. Pyridine (1 ml) was added. After 15 min. at room temperature, the solution was worked up as in Example 1 and molecular distillation gave 0.45 g (93%) of dimethyl 2-(3-thienylidene)malonate, containing minor impurities by glc (SE-30, 200° ).

Provenance & Evidence