ボリルアニオン : 新しいボリル金属種の合成と性質

概要

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This account reviews our recent research on chemistry of “boryl anion”. Boryl anions can be classified with their metallic counterpart, such as Li, Mg, Cu, and Zn in a similar manner to the classification of carbanion. Syntheses and characterizations of boryllithium compounds have been achieved by using bulky substituents to prevent a dimerization of a boryl radical intermediate and nitrogen–containing heterocycle to gain an electronic stabilization. Transmetallation of boryllithium afforded a series of borylmetals having Mg, Zn, Cu, Ag, Au, Ti, or Hf. Some of these borylmetals can be regarded as a boryl anion species possessing a nucleophilic character towards organic electrophiles. Detailed analyses of group 11 borylmetal species showed a strong trans influence of boryl ligand. Borylhafnium complex could be utilized as a catalyst precursor for olefin polymerization.
社団法人有機合成化学協会の論文
2010-04-01