hydrogen; pyridinium p-toluenesulfonate in acetone Heating;

1: 1) LDA 2: 1) NaN<Si(CH3)3>2 / 1) xylene, room temp., 2 h, 2) reflux, 4 h 3: 96 percent / H2 / 10percent Pd/C / ethyl acetate 4: 91 percent / diethyl ether / 2 h / Ambient temperature 5: 77 percent / POCl3 / pyridine / 16 h / Ambient temperature 6: 65 percent / H2, PPTS / acetone / Heating View Scheme

1: 1) NaN<Si(CH3)3>2 / 1) xylene, room temp., 2 h, 2) reflux, 4 h 2: 96 percent / H2 / 10percent Pd/C / ethyl acetate 3: 91 percent / diethyl ether / 2 h / Ambient temperature 4: 77 percent / POCl3 / pyridine / 16 h / Ambient temperature 5: 65 percent / H2, PPTS / acetone / Heating View Scheme

1: 77 percent / POCl3 / pyridine / 16 h / Ambient temperature 2: 65 percent / H2, PPTS / acetone / Heating View Scheme