The H2PtCl6 catalysed hydrosilylation of the terpenes (+)-α-fenchene (XI), (−)-2-methylene bornane (XII), (+)-camphene (XIII) and (−)-3-methylene fenchane (XIV) using HSiMe2Cl or HSiMeCl2 proceeds with high regioselectively and in some cases, with high diastereoselectivity. KF-assisted oxidation of the hydrosilylation products gives predominately endo-terpene alcohols. The alcohols have inverted endo/exo
H 2 PtCl 6催化萜烯(+)-α-芬琴(XI),(-)-2-亚甲基born烷(XII),(+)-camp烯(XIII)和(-)-3-亚甲基f烷的氢化
硅烷化(XIV)使用HSiMe 2 Cl或HSiMeCl 2进行区域选择性高,并且在某些情况下,具有高非对映选择性。KF辅助氢化
硅烷化产物的氧化主要产生内
萜烯醇。所述醇的内/外比与通
过氧化氢硼化形成的内/外比相反。的反应XIV与HSiMe 2 Cl或HSiMeCl 2在氢化
硅烷化之前,伴随着异黄烷骨架的干净重排成(+)-2-亚甲基
冰片烷(XII)。