Synthesis of [mn] Cyclophanes: Regiochemistry Transfer from Vinyl Halides to Cyclophanes via Fischer Carbene Complexes

H Wang, AV Predeus, WD Wulff

Index: Wang, Huan; Predeus, Alexander V.; Wulff, William D. Chemistry - A European Journal, 2013 , vol. 19, # 25 p. 8261 - 8267

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Abstract

Abstract The double benzannulation of bis-carbene complexes of chromium with α, ω-diynes generates [mn] cyclophanes in which all three rings are generated in a single reaction. This triple annulation process is very flexible allowing for the construction of symmetrical [nn] cyclophanes and unsymmetrical [mn] cyclophanes as well as isomers in which the two benzene rings are both meta bridged or both para bridged, and isomers that contain both ...