反应详情

To a dichloromethane (0.05 M) solution of triphenylphosphine (1.1 eq) was added iodine (1.1 eq.). The resulting orange-yellow suspension was stirred at RT for 30 min before imidazole (1.2 eq.) and finally methyl 3-bromo-5-(hydroxymethyl)-4-methylbenzoate (1 eq.) from the previous step were added. The now pale yellow solution was stirred at RT for another 30 min. The volatiles were removed in vacuo and the residue was triturated with a 1:1 (v/v) mixture of hexanes and ether. The insolubles were then removed via filtration through a pad of silica gel. Concentration of the filtrate in vacuo afforded the title compound as a white solid.

1. additionwere added
2. customThe volatiles were removed in vacuo
3. customthe residue was triturated with a 1:1 (v/v) mixture of hexanes and ether
4. customThe insolubles were then removed via filtration through a pad of silica gel