反应详情

5.42 g (18.1 mmol) of ethyl 4-adamantan-1-yl-phenylcarbamate were treated with 1.43 g (18.1 mmol) of pyridine and 18.0 g (0.136 mol) of (RS)-4-methoxymethyl-1,3-dioxolan-2-one and stirred at 160° bath temperature for 20 hours. After cooling the reaction mixture was chromatographed on 500 g of silica gel 60 with ether. 1.4 g of (RS)-3-(4-adamantan-1-yl)phenyl]-5-methoxymethyl-oxazolidin-2-one were obtained as a white crystallizate after recrystallization from methylene chloride/ether. M.p.: 145°-147°.

1. temperatureAfter cooling the reaction mixture
2. customwas chromatographed on 500 g of silica gel 60 with ether