[OsH2Cl2(iPr2PCH2CO2Me-κP)2] (4) or [OsCl2(iPr2PCH2CO2Me-κ2P,O)2] (5) with alkynols HC≡CCPh(R)OH (R = Ph, Me, H) gave the vinylcarbyne complexes trans,trans-[OsCl2≡CCH═C(Ph)R}iPr2PCH2CO2Me-κP}iPr2PCH2C(═O)O-κ2P,O}] (6−8) by converting one of the phosphinoester ligands into a phosphinoacetate moiety. The six-coordinate carbyne(hydrido) osmium(II) compound [OsHCl2≡CCH═CPh2}(PiPr3)iPr2PCH2CH2NMe2-κP}]
所述chetale络合物[OSCL 2(我
镨2 PCH 2 CH 2 OME-κ 2 P,ö)2 ](1)与炔
丙醇反应HC≡CCPh 2(OH),得到偏二
锇(II)衍
生物[OSCL 2 ═C═CHCPh 2(OH)}(我
镨2 PCH 2 CH 2 OMe- κP)(我
镨2 PCH 2 CH 2 OME-κ 2 P,ø)](2),将其用HCl处理在苯转化为卡宾络合物FAC - [OSCL 3(≡CCH═CPh 2)我
镨2 PCH 2 CH 2 OMe- κP } 2 ](图3a)。的热重排3a中导致了形成聚体异构体3B。的反应要么[OSH 2
氯2(我
镨2 PCH 2 CO 2 ME- κP)2 ](4)或[OSCL 2(我
镨2 PCH 2 CO 2 ME-κ 2 P,ö)2 ](5)与炔醇HC≡CCPh(R)OH([R = PH,箱,H),得到vinylcarbyne络合物反式,反式- [OSCL