Synthesis of a Series of Rhodium Complexes, TpiPrRhIL2 and TpiPrRhIII(X)(Y)(MeCN), with the Hydridotris(3,5-diisopropylpyrazolyl)borato Ligand (T

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• 作者：Keisuke Ohta ; Mariko Hashimoto ; Yoshiaki Takahashi ; Shiro Hikichi ; Munetaka Akita ; and Yoshihiko Moro-oka
• 刊名：Organometallics
• 出版年：1999
• 出版时间：August 2, 1999
• 年：1999
• 卷：18
• 期：16
• 页码：3234 - 3240
• 全文大小：91K
• 年卷期：v.18,no.16(August 2, 1999)
• ISSN：1520-6041

文摘

The labile Rh(I) species Tp^iPrRh(coe)(MeCN) (1) was prepared by the reaction of [RhCl(coe)₂]₂ with KTp^iPr followed by crystallization from MeCN. Subsequent treatment of 1 withdiphosphines and CO gave square-planar Tp^iPrRh^IL₂-type products via replacement of thecoe and MeCN ligands. The Rh(III) complexes Tp^iPrRh(X)(Y)(MeCN) were obtained viaoxidative addition of XY and dissociation of the coe ligand. Complex 1 serves as a versatilestarting compound for a variety of Rh(I) and Rh(III) complexes containing the Tp^iPr ligand.In addition, it was found that ²-³ interconversion of the diphosphine complexes Tp^iPrRh[Ph₂P(CH₂)_nPPh₂] becomes slower as the chelate ring size increases (n increases).