Highly stereo- and chemoselective iron-catalyzed alkenylation of organomagnesium compounds

[摘要]：In the presence of Fe(acac)(3), Grignard reagents react readily with alkenyl halides (X= I, Br or Cl) in a THF/NMP mixture to give the cross-coupling products in high yields with an excellent stereoselectivity (greater than or equal to 99.5%). The scope of the reaction is very broad since a vast array of functional groups are tolerated testers, nitriles, aromatic or aliphatic halides and even ketones). The procedure reported herein is an interesting alternative to the classical Pd- or Ni-catalyzed reactions, especially for preparative organic chemistry.

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