Synthesis and structure of new oxapalladacycles with a Pd-O bond

被引：60

作者：

Fernández-Rivas, C

Cárdenas, DJ

Martín-Matute, B

Monge, A

Gutiérrez-Puebla, E

Echavarren, AM ^{[1
]}

机构：

[1] Univ Autonoma Madrid, Dept Quim Organ, Madrid 28049, Spain

[2] CSIC, Inst Ciencia Mat Madrid, Madrid 28049, Spain

来源：

ORGANOMETALLICS | 2001年 / 20卷 / 14期

关键词：

D O I：

10.1021/om0010565

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reaction of the arylpalladium complex [Pd(2-C6H4CH2OSi-t-BuMe2)(PPh3)(2)I] (9) with n-Bu4NF gave the oxapalladacycle dimer [Pd(2-C6H4CH2O)I(PPh3)](2) (7). Similarly, [Pd(2-C6H4CH2O)I(AsPh3)](2) (11) was obtained by reaction of the arylpalladium complex [Pd(2C(6)H(4)CH(2)OSi-t-BuMe2)(AsPh3)(2)I] (10) with n-Bu4NF. The structure of dimer 7 was confirmed by single-crystal X-ray diffraction. Reaction of 7 or 11 with the bidentate ligands 1,1 ' -bis(diphenylphosphino)ferrocene and 1,10-phenanthroline gave the monomeric oxapalladacycle complexes 16 and 17. Complex 7 inserts tert-butyl isocyanide to form 1,1-dimethyl-N-1(3H)-isobenzofuranylidenethanamine (18). Reaction of [Pd(2-C6H4R)(PPh3)(2)X] (R = CHO, X = Br, 21; R = CO2H, X = Br, 24a; R = CO2H, X = I, 24b) with Ag2CO3 or Cs2CO3/AgBF4 afforded the tetrameric complex [Pd(2-C6H4CO2)(PPh3)](4) (22), whose structure was confirmed by X-ray diffraction.

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页码：2998 / 3006

页数：9

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