Sequential Oxidation and C−H Bond Activation at a Gallium(I) Center

Abstract

In situ oxidation of the Ga I compound NacNacGa by either N 2 Oo rp yridine oxide results in the generation of al abile monomeric oxide,N acNacGa(O), whichc an easily cleave the CÀHb onds of aliphatic and aromatic substrates featuring good donor sites.T he products of this reaction are gallium organyl hydroxides.DFT calculations show that these reactions start with the formation of NacNac-Ga(O)(L) adducts,t he oxol igand of whichc an easily abstract protons from nearby CÀHb onds,e ven for sp 2 -hybridized carbon centers.A liphatic amines do not enter this reaction for kinetic reasons,presumably because of the unfavorable sterics.Supportinginformation and the ORCID identification number(s) for the author(s) of this article can be found under: https://doi.