sodium 6 h; Heating;

1: 1.) LiH, 2.) tetrakis(triphenylphosphine)palladium / 1.) DMF, RT, 30 min, 2.) DMSO, 45 deg C, 22 h 2: 77 percent / tetrabutylammonium fluoride / acetonitrile / 2 h / 50 °C View Scheme

1: 1.) LiH, 2.) tetrakis(triphenylphosphine)palladium / 1.) DMF, RT, 30 min, 2.) DMSO, 45 deg C, 19 h 2: 70 percent / tetrabutylammonium fluoride / acetonitrile / 3 h / 50 °C View Scheme