An ortho-arylation reaction of aromatic imines with aryl chlorides has been achieved using a cobalt-N-heterocyclic carbene catalyst in combination with a neopentyl Grignard reagent. The reaction takes place at room temperature to afford biaryl products in moderate to good yields.

Fe(OTf) 3 -catalyzed reaction of benzylic acetates with allyltrimethylsilane, azidotrimethylsilane, and cyanotrimethylsilane afforded the corresponding allylated, azido, and cyano products in high yields. 2-Trimethylsilyl-substituted benzofuran and indole worked well to furnish the benzyl-substituted benzofuran and indoles.

Fe(OTf) 3 -Catalyzed Reaction of Benzylic Acetates with Organosilicon Compounds. -The title reactions allow formation of allyl, azido, or cyano products and benzyl-substituted benzofurans and indoles. -(CHAN, L. Y.; KIM, S.; CHUNG, W. T.; LONG, C.; KIM*, S.; Synlett 2011, 3, 415-419, http://dx.doi.org/10.1055/s-0030-1259313 ; Div. Chem. Biol. Chem., Sch. Phys. Math. Sci., Nanyang Technol. Univ., Singapore 637371, Singapore; Eng.) -Mais 22-023

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The Co(II)/imidazolium catalyst in combination with neopentylmagnesium bromide allows arylation at room temperature.