1: potassium hydroxide / ethanol; water / |Microwave irradiation 2: thionyl chloride / toluene / |Microwave irradiation 3: potassium carbonate / tetrahydrofuran / |Microwave irradiation View Scheme

potassium carbonate in acetone 4 h; Heating;

1: 77 percent / 1.)5percent NaClO/50percent aq. NaOH, 2.)conc. aq. HCl / 1.)80-90 deg C, 1 h, 2.)95-100 deg C, 1.5 h 2: 95 percent / K2CO3 / acetone / 4 h / Heating View Scheme