反应详情

To a solution of 4-bromoanisole (1.00 g) in tetrahydrofuran (4 ml), n-butyllithium hexane solution (1.56M, 3.4 ml) was added at −78° C. under a flow of nitrogen. After stirring for 0.5 hour, a solution of 2-[(4,5-diphenyloxazol-2-yl)methyl]cyclohexan-1-one (1.36 g) in tetrahydrofuran (3 ml) was added below −50° C. to the reaction mixture and stirred for 0.5 hour. After usual workup, the crude product was purified by column chromatography (silica gel 50 g, eluent; hexane/ethyl acetate=9 then 4) to give 2-[(4,5-diphenyloxazol-2-yl)methyl]-1-(3-methoxyphenyl)-1-cyclohexanol (1.01 g) as a foam.

1. stirringstirred for 0.5 hour
2. customAfter usual workup, the crude product was purified by column chromatography (silica gel 50 g, eluent