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首页> 外文期刊>Coordination chemistry reviews >Complexes of tris(pentafluorophenyl)boron with nitrogen-containing compounds: Synthesis, reactivity and metallocene activation
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Complexes of tris(pentafluorophenyl)boron with nitrogen-containing compounds: Synthesis, reactivity and metallocene activation

机译:三(五氟苯基)硼与含氮化合物的配合物:合成,反应性和茂金属活化

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摘要

The strong Lewis acid tris(pentafluorophenyl)boron, B(C_6F_5 )_3, reacts with several nitrogen-containing Lewis bases (nitriles, amines, imines, pyridines, etc.) and also with non-basic substrates (such as pyrroles and indoles) producing in both cases the B—N coordination adduct. With particular substrates (some tertiary amines, the imine ~tBu(Me)C=NBn, N-methyl-pyrrole and -indole,) the 1:1 borane/N-compound reaction produces zwitterions where a new B—C bond is generated. Some of the borane-iV-compound adducts present Bronsted acidity and can be reacted with di-methyl group 4 complexes with generation of weakly associated ion pairs, which are active catalysts for the polymerization of olefins.
机译:强路易斯酸三(五氟苯基)硼B(C_6F_5)_3与几种含氮的路易斯碱(腈,胺,亚胺,吡啶等)以及非碱性底物(如吡咯和吲哚)反应在两种情况下均产生B-N协调加合物。对于特定的底物(某些叔胺,亚胺〜tBu(Me)C = NBn,N-甲基吡咯和-吲哚),1:1硼烷/ N-化合物反应会生成两性离子,并在其中生成新的B-C键。某些硼烷-IV化合物加合物具有布朗斯台德酸度,可与四甲基二甲基配合物反应,生成弱缔合的离子对,这是烯烃聚合的活性催化剂。

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