Alkylidenetriphenylphosphoranes react with the tetrahydrofuran complex of 1-boraadamantane to form stable adducts. The adducts rearrange to compounds of the 4-alkyl-3-borahomoadamantane series.
                                    炔基三苯基
磷ora烷与1-boraadamantane的
四氢呋喃配合物反应形成稳定的加合物。加合物将重排成4-烷基-3-borahomoadamantane系列的化合物。