sodium hydroxide; ethanol

1: 56 percent / Mg / tetrahydrofuran 2: 77 percent / AlCl3 / CS2 / 1 h / 0 °C 3: 33 percent / Ca(OCl)2, K2CO3, KOH / H2O / 7.5 h / 110 °C 4: SOCl2, CaCO3 / benzene; dimethylformamide / 2 h / Ambient temperature 5: 36 percent / Et3N / benzene 6: 66 percent / aq. NaOH/EtOH View Scheme

1: 77 percent / AlCl3 / CS2 / 1 h / 0 °C 2: 33 percent / Ca(OCl)2, K2CO3, KOH / H2O / 7.5 h / 110 °C 3: SOCl2, CaCO3 / benzene; dimethylformamide / 2 h / Ambient temperature 4: 36 percent / Et3N / benzene 5: 66 percent / aq. NaOH/EtOH View Scheme

1: SOCl2, CaCO3 / benzene; dimethylformamide / 2 h / Ambient temperature 2: 36 percent / Et3N / benzene 3: 66 percent / aq. NaOH/EtOH View Scheme

1: 33 percent / Ca(OCl)2, K2CO3, KOH / H2O / 7.5 h / 110 °C 2: SOCl2, CaCO3 / benzene; dimethylformamide / 2 h / Ambient temperature 3: 36 percent / Et3N / benzene 4: 66 percent / aq. NaOH/EtOH View Scheme

1: 36 percent / Et3N / benzene 2: 66 percent / aq. NaOH/EtOH View Scheme