Issue 14, 2016

Cyclic NHC-stabilized silylphosphinoalanes and -gallanes

Abstract

Four-membered Al/Ga–P ring systems were prepared by thermal hydrogen elimination between the primary silylphosphine H2PSitBuPh2 and the metal hydride precursors [(Me3N)MH3] (M = Al, Ga). The obtained cycles [(Me3N)HMP(SitBuPh2)]2 (M = Al: 1, Ga: 2) were functionalized by substituting the amine donor with the N-heterocyclic carbenes IPr and BImY to obtain the compounds [(NHC)HMP(SitBuPh2)]2 (IPr/Al: 3, BImY/Al: 4, IPr/Ga: 5, BImY/Ga: 6). All mentioned compounds feature an unusual external Lewis base stabilization as well as hydridic metal bound hydrogen atoms.

Graphical abstract: Cyclic NHC-stabilized silylphosphinoalanes and -gallanes

Supplementary files

Article information

Article type
Paper
Submitted
05 Okt 2015
Accepted
15 Des 2015
First published
22 Des 2015

Dalton Trans., 2016,45, 6275-6281

Cyclic NHC-stabilized silylphosphinoalanes and -gallanes

M. Kapitein, M. Balmer, L. Niemeier and C. von Hänisch, Dalton Trans., 2016, 45, 6275 DOI: 10.1039/C5DT03889H

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