Reactions of bis(silyl)palladium(II) complexes with allyl halides.: Synthesis of mono(silyl)palladium(II) halides and X-ray structure of trans-PdCl(SiF2Ph)(PMe2Ph)2

被引:11
|
作者
Ozawa, F [1 ]
Sugawara, M
Hasebe, K
Hayashi, T
机构
[1] Osaka City Univ, Fac Engn, Dept Appl Chem, Sumiyoshi Ku, Osaka 5588585, Japan
[2] Hokkaido Univ, Grad Sch Pharmaceut Sci, Kita Ku, Sapporo, Hokkaido 0600812, Japan
[3] Kyoto Univ, Fac Sci, Dept Chem, Kita Ku, Kyoto 6068502, Japan
关键词
crystal structures; palladium complexes; silyl complexes; allylsilanes;
D O I
10.1016/S0020-1693(99)00298-4
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Reactions of trans-Pd(SiF2Ph)(2)L-2 (L = PMe3 (1a), PMe2Ph (1b), PMePh2 (1c)) with allyl bromide readily proceeded in CH2Cl2 at -20 degrees C to form CH2=CHCH2SiF2Ph and the corresponding bromo(silyl)palladium complexes, trans-PdBr(SiF2Ph)L-2 (2a-2c) in high selectivities. Treatment of 1a-1c with dry HCl in CH2Cl2 at -20 degrees C gave silyl chloride complexes, trans-PdCl(SiF2Ph)L-2 (3a-3c), respectively. Complexes 2a-2c and 3a-3c were isolated and characterized by NMR spectroscopy and/or elemental analysis. One of the complexes, trans-PdCl(SiF2Ph)(PMe2Ph)(2) (3b), was identified also by X-ray diffraction study. Relevance of bis-silyl complexes to catalytic silylation of allylic compounds with disilanes is discussed. (C) 1999 Elsevier Science S.A. All rights reserved.
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页码:19 / 25
页数:7
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