Heavier alkali-metal gallates as platforms for accessing functionalized abnormal NHC carbene-gallium complexes

Uzelac, Marina and Kennedy, Alan R. and Hernán-Gómez, Alberto and Fuentes, M. Ángeles and Hevia, Eva (2016) Heavier alkali-metal gallates as platforms for accessing functionalized abnormal NHC carbene-gallium complexes. Zeitschrift fur Anorganische und Allgemeine Chemie, 642 (22). pp. 1241-1244. ISSN 0044-2313

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    Abstract

    By sequentially treating the unsaturated carbene IPr (IPr = 1,3-bis-(2,6-diisopropylphenyl)imidazol-2-ylidene) with heavier alkali-metal alkyls NaR or KR (R = CH2SiMe3) and GaR3, novel heteroleptic gallates 1 and 2 have been prepared. Incorporating anionic NHC ligands, these bimetallic complexes react selectively with electrophilles to afford neutral abnormal NHC Ga complexes under mild conditions.