1: 82 percent / sodium methoxide / 10 h / Ambient temperature 2: 77 percent / perchloric acid / ethyl acetate; H2O / 2 h / Ambient temperature 3: 70 percent / sodium methoxide / methanol / 7.5 h / Ambient temperature 4: 40 percent / sodium methoxide / benzene / 3 h / Heating 5: pyridine / 9 h / Ambient temperature 6: trimethylammonium acetate / tetrakis(triphenylphosphine)palladium(0) / tetrahydrofuran / 3.5 h / Heating View Scheme

1: 40 percent / sodium methoxide / benzene / 3 h / Heating 2: pyridine / 9 h / Ambient temperature 3: trimethylammonium acetate / tetrakis(triphenylphosphine)palladium(0) / tetrahydrofuran / 3.5 h / Heating View Scheme

1: 77 percent / perchloric acid / ethyl acetate; H2O / 2 h / Ambient temperature 2: 70 percent / sodium methoxide / methanol / 7.5 h / Ambient temperature 3: 40 percent / sodium methoxide / benzene / 3 h / Heating 4: pyridine / 9 h / Ambient temperature 5: trimethylammonium acetate / tetrakis(triphenylphosphine)palladium(0) / tetrahydrofuran / 3.5 h / Heating View Scheme

1: 70 percent / sodium methoxide / methanol / 7.5 h / Ambient temperature 2: 40 percent / sodium methoxide / benzene / 3 h / Heating 3: pyridine / 9 h / Ambient temperature 4: trimethylammonium acetate / tetrakis(triphenylphosphine)palladium(0) / tetrahydrofuran / 3.5 h / Heating View Scheme

trimethylammonium acetate; tetrakis(triphenylphosphine) palladium(0) in tetrahydrofuran 3.5 h; Heating;

triethylamine; tetrakis(triphenylphosphine) palladium(0) 18 h; Yield given;

triethylamine; tetrakis(triphenylphosphine) palladium(0) 18 h; new highly stereocontrolled palladium catalyzed diene synthesis, reaction time effect on product type; Product distribution;

sodium methylate in methanol 1 h; Ambient temperature;

hydroquinone; toluene

1: 55 percent / NaOH, Et3BzNCl / 14 h / Ambient temperature 2: 56 percent / LiAlH4 / diethyl ether / 14 h / Ambient temperature 3: 72 percent / Et3N / CH2Cl2 / 1.) 0 deg C, 4 h, 2.) 5 deg C, 14 h 4: 36 percent / LiAlH4 / diethyl ether / 14 h / Heating 5: 52 percent / KO-t-Bu / dimethylsulfoxide / 2 h / Ambient temperature 6: AgNO3 / CCl4 / 0.5 h View Scheme