Two precatalysts for application in propargylic CH activation

The complexes {bis­[(2-di­phenyl­phosphan­yl)phen­yl] ether-κ2P,P′}(η4-norbornadiene)rhodium(I) tetra­fluorido­borate, [Rh(C7H8)(C36H28OP2)]BF4, and {bis­[(2-di­phenyl­phosphan­yl)phen­yl] ether-κ2P,P′}[η4-(Z,Z)-cyclo­octa-1,5-diene]rhodium(I) tetra­fluorido­borate di­chloro­methane monosolvate, [Rh(C8H12)(C36H28OP2)]BF4·CH2Cl2, are applied as precatalysts in redox-neutral atomic-economic propargylic CH activation [Lumbroso et al. (2013). Angew. Chem. Int. Ed. 52, 1890–1932]. In addition, the catalytically inactive penta­coordinated 18-electron complex {bis­[(2-di­phenyl­phosphan­yl)phen­yl] ether-κ2P,P′}chlorido­(η4-norbornadiene)rhodium(I), [RhCl(C7H8)(C36H28OP2)], was synthesized, which can form in the presence of chloride in the reaction system.