1: phenylacetylene With n-butyllithium in tetrahydrofuran; hexane T=-78°C; Negishi Coupling; Inert atmosphereSchlenk technique; 2: With zinc dibromide in tetrahydrofuran; hexane T=-50°C; Negishi Coupling; 0.25 h; Inert atmosphereSchlenk technique; 3: 2-bromo-4,5-dimethylphosphinine With tris-(dibenzylideneacetone)dipalladium(0); 1,2-bis-(diphenylphosphino)ethane in tetrahydrofuran; hexane T=-60 - 50°C; Negishi Coupling; 24 h; Inert atmosphereSchlenk technique;

tris-(dibenzylideneacetone)dipalladium(0); 1,2-bis-(diphenylphosphino)ethane in para-xylene T=20 - 110°C; 1.5 h; Inert atmosphereSchlenk technique; SolventTemperature;

1: phenyllithium With zinc dibromide in tetrahydrofuran; anhydrous butyl ether T=-50°C; 0.5 h; Inert atmosphereSchlenk technique; 2: 2-bromo-4,5-dimethylphosphinine With tris-(dibenzylideneacetone)dipalladium(0); 1,2-bis-(diphenylphosphino)ethane in tetrahydrofuran; anhydrous butyl ether T=50°C; 24 h; Inert atmosphereSchlenk technique;

tris-(dibenzylideneacetone)dipalladium(0); 1,2-bis-(diphenylphosphino)ethane in tetrahydrofuran T=-30 - 40°C; Inert atmosphereSchlenk technique; Reagent/catalyst;