Process for cross-coupling aromatic halogen compounds or...

Details Process for cross-coupling aromatic halogen compounds or... Process for cross-coupling aromatic halogen compounds or...

C - Chemistry, Metallurgy

07

C

C07C 43/23 (2006.01) C07B 37/04 (2006.01) C07C 1/26 (2006.01) C07C 15/48 (2006.01) C07C 29/32 (2006.01) C07C 33/30 (2006.01) C07C 33/48 (2006.01) C07C 41/30 (2006.01) C07C 209/68 (2006.01) C07C 211/28 (2006.01) C07C 231/12 (2006.01) C07C 233/05 (2006.01) C07D 213/30 (2006.01) C07D 239/26 (2006.01) C07D 241/12 (2006.01) C07F 7/08 (2006.01)

Patent

CA 2161601

A process for preparing polycyclic aromatic compounds by cross-coupling terminal alkynes with aromatic halogen compounds or aromatic perfluoroalkylsulfonates under palladium catalysis in the presence of at least one water-soluble complexing ligand, wherein the reaction medium forms an aqueous phase and an organic phase and the palladium is added in the form of a palladium compound soluble in the organic phase or in solid form as palladium metal, in particular applied to a support. The reaction of the invention proceeds chemoselectively, so that even electrophilic groups such as esters or nitriles do not impair the course of the reaction. The process of the invention enables organic compounds to be prepared economically in very good yields and at the same time in very high purity, in particular without contamination by the complexing ligands.

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