反应详情

Following a procedure similar to that described in Example 40(a), 0.930 g of 2-(2-phenylethyl)phenol (prepared as described in Preparation 19), 0.527 g of potassium t-butoxide and 1.66 g of 1-t-butoxycarbonyl-2-[2-(p-toluenesulfonyloxy)ethyl]piperidine were reacted in 20 ml of dimethylacetamide. The mixture was then worked lap as described in Example 40(a), and the crude product thus obtained was purified by column chromatography through silica gel, using a 4:1 by volume mixture of hexane and ethyl acetate as the eluent, to give 1.34 g (yield 75%) of the title compound as a colorless oil.

1. customthe crude product thus obtained
2. customwas purified by column chromatography through silica gel
3. additionby volume mixture of hexane and ethyl acetate as the eluent