反应详情

To a solution of (-)-N-t-butyl-4,4-diphenyl-2-cyclopentenylamine (8.82 g) in diethyl ether (50 ml) was added water (15 ml) and conc. hydrochloric acid (5 ml) at 0°-10° C. and stirred for 30 minutes. The resulting precipitate was collected by filtration and washed with diethyl ether to give (-)-N-t-butyl-4,4-diphenyl-2-cyclopentenylamine hydrochloride (9.70 g).

1. filtrationThe resulting precipitate was collected by filtration
2. washwashed with diethyl ether