反应详情

A solution of ethyl[2-methyl-4-(2-thien-2-ylethoxy)phenoxy]acetate (intermediate 69, 0.306 g) in acetic acid (5 ml) was treated with bromine (0.180 g) at ambient temperature and the mixture stirred for 15 minutes. The mixture was poured into water and the resulting suspension extracted with diethyl ether. The organic layer was separated, dried over sodium sulfate and concentrated to give the title compound as a colourless oil.

1. extractionthe resulting suspension extracted with diethyl ether
2. customThe organic layer was separated
3. dry with materialdried over sodium sulfate
4. concentrationconcentrated