Chemoselective sp 2-sp3 cross-couplings: Iron-catalyzed alkyl transfer to dihaloaromatics
The chemoselective functionalization of a range of dihaloaromatics with methyl, cyclopropyl, and higher alkyl Grignard reagents via iron-catalyzed cross-coupling is described. The site selectivity of C-X (X = halogen) activation is determined by factors such as the position of the halogen on the ring, the solvent, and the nucleophile. A one-pot protocol for the chemoselective synthesis of mixed dialkyl heterocycles is achieved solely employing iron catalysis.
Malhotra, Sushant,Seng, Pamela S.,Koenig, Stefan G.,Deese, Alan J.,Ford, Kevin A.
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p. 3698 - 3701
(2013/08/23)
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