Transformations of alkene and alkyne substrates relevant to π-Lewis acid catalysis have been performed using low-valent Ga(I) species. Ga(I) catalysts proved to be efficient catalysts for cycloisomerizations, Friedel-Crafts reactions, transfer hydrogenations, and reductive hydroarylations. Their activity was compared to more common Ga(III) complexes. This study shows that even the readily available and yet overlooked gallium(I) salts can be a more active π-Lewis acid catalyst than gallium(III) chloride or other Ga(III) species.

Catalytic use of low-valent cationic gallium(I) complexes π-acids

255th National Meeting (2018)

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