in not given heating both compds. (140°C, 21 h); washing (ether); recrystn. of bicyclo-Sn-compd. (MeOH/CS2), Bu3SnPh isolated from washings (vol. redn., distn. at 116°C, 0.3 torr);

1: NaOH 2: diethyl ether 3: LiAlH4 View Scheme