p-Chlorothiophenol → (4-Chlorophenyl)(2,5-difluorobenzyl)sulfane

Participants

Reaction Steps

4-Chlorothiophenol (3.6 g, 0.025 mol) in dichloromethane (100 mL) was treated with 2,5-difluorobenzyl bromide (5.17 g, 0.025 mol) and triethylamine (3.9 ml, 0.028 mol). The reaction was stirred for 2 hours then diluted with dichloromethane (250 mL) and washed with water (100 mL) and brine (100 mL). The separated organic layer was dried (MgSO4), evaporated to dryness, and the product purified by passing down a plug of silica eluting with hexane-ethyl acetate mixtures to give 4-chlorophenyl 2,5-difluorobenzyl sulfide (5.12 g). 1H NMR CDCl3 7.23 (4H, s), 6.69–6.86 (3H, m) and 4.04 (2H, s).

Provenance & Evidence