Thionyl Chloride → 2-(Chloromethyl)-1-benzothiophene

Participants

Reaction Steps

A solution of benzo[b]thiophen-2-yl-methanol (1 eq.) in thionyl chloride was stirred at 20° C. for 1 h. The crude was concentrated under reduced pressure then partitioned between a saturated aqueous solution of NaHCO3 and EtOAc. The organic layer was separated, dried over MgSO4, filtered and concentrated under reduced pressure to afford 2-chloromethyl-benzo[b]thiophene, used as such without further purification.

Provenance & Evidence