Synthesis and reactivity studies of Pd(II) complexes of the bulky CH(SiMe3)2 group.: X ray structure of the indenyl derivative (η-Ind)Pd[CH(SiMe3)2](PMe3)

被引:8
|
作者
Alías, FM
Belderrain, TR
Carmona, E
Graiff, C
Paneque, M
Tiripicchio, A
机构
[1] Univ Sevilla, CSIC, Dept Quim Inorgan, Inst Invest Quim, E-41092 Seville, Spain
[2] Univ Parma, Dipartimento Chim Gen & Inorgan Chim Analit Chim, Ctr Studio Strutturist Diffrattometr, CNR, I-3100 Parma, Italy
关键词
Pd-alkyl complexes; indenyl ligand; dimeric species;
D O I
10.1016/S0022-328X(98)01100-0
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The reaction of PdCl2(cod) with Mg[CH(SiMe3)(2)]Cl and PMe3 gives the dimeric species {Pd[CH(SiMe3)(2)](mu-Cl)(PMe3)}(2) (2), which, in the presence of PMe3 and Me2PCH2CH2PMe2 (dmpe) affords the monomeric alkyls Pd[CH(SiMe3)(2)]Cl(PMe3)(2) (3) and Pd[CH(SiMe3)(2)]Cl(dmpe) (4), respectively. Compound 3 is obtained as a mixture of cis and trans isomers, in a ratio that depends on the polarity of the solvent, as deduced from H-1- and P-31{H-1}-NMR spectra. Some methatetical reactions are also reported. Spectroscopic and X-ray results obtained for the indenyl derivative (eta-Ind)Pd[CH(SiMe3)(2)](PMe3) (7) are discussed. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:316 / 322
页数:7
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