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...

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...

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.

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...