Stable Palladium(0), Palladium(II), and Platinum(II) Complexes Containing a New, Multifunctional and Hemilabile Phosphino-Imino-Pyridyl Ligand: Synthesis, Characterization, and Reactivity
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- 作者：Richard E. Rü ; lke ; Vincent E. Kaasjager ; Petra Wehman ; Cornelis J. Elsevier ; Piet W. N. M. van Leeuwen ; Kees Vrieze ; Jan Fraanje ; Kees Goubitz ; and Anthony L. Spek
- 刊名：Organometallics
- 出版年：1996
- 出版时间：June 25, 1996
- 年：1996
- 卷：15
- 期：13
- 页码：3022 - 3031
- 全文大小：314K
- 年卷期：v.15,no.13(June 25, 1996)
- ISSN：1520-6041
文摘
The new, multifunctional, hemilabilephosphorus-bis(nitrogen) ligandN-(2-(diphenylphosphino)benzylidene)(2-(2-pyridyl)ethyl)amine, PNN,containing phosphine, imine, and pyridyldonor groups and alkyl-, allyl-, and acylpalladium complexes,methylplatinum complexes,and a zerovalent palladium complex containing PNN have been synthesizedand characterized with 1H-, 13C-, 31P-, and15N-NMR. PNN commonly coordinates in a terdentatefashion,resulting in ionic complexes of the type[(PNN)MII(R)]Y (M = Pd, Pt, R = CH3,Y = Cl,CF3SO3; M = Pd, R =C(O)CH3, Y = CF3SO3; M =Pd, R = 
1-CH2C(H)=CH2, Y =Cl, CF3SO3). Bidentate coordination of PNN is observed for[(PNN)PdII(3-(CH3)2CC(CH3)C(CH3)2)]Cl and surprisingly also for neutral(PNN)PdII(C(O)CH3)(Cl).An unprecedented zerovalentpalladium complex (PNN)Pd0 has been isolated, which isstabilized by PNN only. Preliminaryresults show that palladium complexes of PNN are very active in allylicalkylation reactions.
1-CH2C(H)=CH2, Y =Cl, CF3SO3). Bidentate coordination of PNN is observed for[(PNN)PdII(3-(CH3)2CC(CH3)C(CH3)2)]Cl and surprisingly also for neutral(PNN)PdII(C(O)CH3)(Cl).An unprecedented zerovalentpalladium complex (PNN)Pd0 has been isolated, which isstabilized by PNN only. Preliminaryresults show that palladium complexes of PNN are very active in allylicalkylation reactions.