tris(dibenzylideneacetone)dipalladium(0) chloroform complex; triethylamine; triphenylphosphine in tetrahydrofuran 14 h; Heating;

Multi-step reaction with 2 steps 1: 1.) NaH / 1.) Et2O, r. t., 2 h, 2.) r. t., 2 h2: 93 percent / pyridine / CH2Cl2 / 2 h / 0 °C