Issue 28, 2023

Reactions of nickel boranyl compounds with pnictogen–carbon triple bonds

Abstract

The catalytic conversion of unsaturated small molecules such as nitriles into reduced products is of interest for the production of fine chemicals. In this vein, metal–ligand cooperativity has been leveraged to promote such reactivity, often conferring stability to bound substrate – a balancing act that may offer activation at the cost of turnover efficiency. This report describes the reactivity of a [(diphosphine)Ni] compound with pnictogen carbon triple bonds (R–C[triple bond, length as m-dash]E; E = N, P), where the diphosphine contains two pendant borane groups. For E = N, cooperative nitrile coordination is observed to afford {Ni}2 complexes displaying B–N interactions, whereas for E = P, B–P interactions are absent. This work additionally outlines a structure–activity relationship that uses nitrile dihydroboration as a model reaction to unveil the effect of SCS stabilization, employing [(diphosphine)Ni] where the diphosphine contains 0, 1, or 2 pendant Lewis acid groups.

Graphical abstract: Reactions of nickel boranyl compounds with pnictogen–carbon triple bonds

Supplementary files

Article information

Article type
Paper
Submitted
28 apr 2023
Accepted
14 jun 2023
First published
23 jun 2023
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2023,13, 19158-19163

Reactions of nickel boranyl compounds with pnictogen–carbon triple bonds

B. J. H. Austen, M. L. Clapson and M. W. Drover, RSC Adv., 2023, 13, 19158 DOI: 10.1039/D3RA02797J

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