Dehydrocoupling Reactions of Secondary and Primary Amine–Borane Adducts Catalyzed by Half-sandwich Carbonyl Complexes, [CpMn(CO)<sub>3</sub>], [(η<sup>6</sup>-C<sub>6</sub>H<sub>6</sub>)Cr(CO)<sub>3</sub>], and [CpV(CO)<sub>4</sub>]
Dehydrocoupling reactions of amine–borane adducts catalyzed by half-sandwich carbonyl complexes are described. Secondary amine–borane adducts released H2 with catalytic action of [CpMn(CO)3] (Cp: η5-C5H5), [(η6-C6H6)Cr(CO)3], and [CpV(CO)4] under photoirradiation to produce dimeric or monomeric aminoboranes. These results were parallel to the [M(CO)6]-catalyzed system (M = Cr, Mo, and W); however, the reactions were considerably slower. Dehydrocoupling of BH3·NH2Me afforded an aminoborane polymer, [BH2NHMe]n.
Catalytic dehydrocoupling of amine-boranes and amines into diaminoboranes: isolation of a Pt(<scp>ii</scp>), Shimoi-type, η<sup>1</sup>-BH complex
作者:Marta Roselló-Merino、Raquel J. Rama、Josefina Díez、Salvador Conejero
DOI:10.1039/c6cc02720b
日期:——
The platinum complex [Pt(ItBu′)(ItBu)][BArF] is a very efficient catalyst in the synthesis of diaminoboranes through dehydrocoupling of amine-boranes and amines.