Amine–Boranes Reactions Promoted by Lanthanide(II) Ions

The catalytic activity in amine-borane dehydrogenation is shown for the first time for lanthanide(II) species using complexes [{(p-tBu-C6H4)2-CH}2M·L] (M = Yb, Sm, L = (DME)2, TMEDA). The protonation of M(II)-C...

Activation of sodium borohydride via carbonyl reduction for the synthesis of amine- and phosphine-boranes

A highly versatile synthesis of amine-boranes via carbonyl reduction by sodium borohydride is described. Unlike the prior bicarbonate-mediated protocol, which proceeds via a salt metathesis reaction, the carbon dioxide-mediated synthesis...

Bifunctional activation of amine-boranes by the W/Pd bimetallic analogs of “frustrated Lewis pairs”

Bimetallic complexes [LW(CO)2(μ-CO)⋯Pd(PCP)] cooperatively activate amine-boranes for their dehydrogenation via N–H proton tunneling at RDS and H2 evolution from two neutral hydrides.

Mechanistic insights into dehydrocoupling of amine boranes using dinuclear zirconocene complexes

Catalytic dehydrocoupling of H3B·NMe2H using the in situ system Cp2Zr(Cl)(µ-Me3SiC3SiMe3)Zr(Cl)Cp2 (1)/MeLi was studied as a model for previously reported dehydropolymerisation of H3B·NMeH2. NMR and UV-Vis spectroscopic monitoring of the precatalyst...

Visible-Light-Mediated Synthesis of Amides from Carboxylic Acids and Amine Boranes

Herein, a mild photocatalytic deoxygenative amidation protocol using readily available amine borane and carboxylic acids was uncovered. This approach features mild conditions, moderate to good yields, easy scale-up, and up...