VinylidenÜbergangsmetallkomplexeXVI。炔基,乙烯基和乙烯基-的合成和合成[C 6 H 6 Os(R 3)]结构
摘要:
化合物[C 6 H 6 Os(PR 3)I 2 ]与AgPF 6和1-炔烃R'CCH反应,根据取代基R'得到中性炔基或阳离子亚乙烯基络合物[C 6 H 6 Os(CCR')(PR 3)I](R'= Ph,Tol)和[C 6 H 6 Os(= C = CHR')(PR 3)I] +(R'= H,Me,n Bu,t Bu)。[C 6 H 6 Os(PMe t Bu 2)I 2 ]与AgPF 6和HCCCO的反应2 Me给出五元环化合物[C 6 H 6(CH = C(I)C(OMe)O)(PMe t Bu 2)] PF 6,经NaI处理并随后消除CH 3 I,形成中性络合物[C 6 H 6(CH = C(I)C(O)O)(PMe t Bu 2)]。阳离子[C 6 H 6 Os(= C = CHR')(PR 3)I] +(R'= Me,n Bu,t Bu)与碱(MeNH 2,Me 2 NH,1