Abstract Diethynyl (diphenyl) stannane was prepared, fully characterised in solution and in the solid state, and its reaction with triethylborane, BEt 3, afforded 3-(diethylboryl)-4-ethyl-1, 1-diphenyl-stannole in essentially quantitative yield. Treatment with isocyanates converted this stannole and the known analogous 1, 1-dimethyl derivative into novel bicyclic compounds containing an aminoborane unit. These reactions were found to proceed ...
