acetic anhydride; potassium carbonate in water

4-(N,N-dimethlyamino)pyridine in dichloromethane 5 h; Heating;

hydrogenchloride; calcium hydroxide powder; N-benzyl-N,N,N-triethylammonium chloride in dichloromethane; water; isopropyl alcohol

sodium hydrogencarbonate in water; ethyl acetate

hydrogenchloride; sodium methylate; acetic anhydride; sodium hydrogencarbonate in methanol; propan-1-ol; water; N,N-dimethyl-formamide; toluene

1.1: Et3N / LDH-PdOsW / 16 h / 70 °C 1.2: 92 percent / aq. H2O2; (DHQ)2PHAL; N-methylmorpholine / LDH-PdOsW / 2-methyl-propan-2-ol / 1 h / 20 °C 2.1: 98 percent / SOCl2; pyridine / 2 h / 0 °C 3.1: 50 percent / Fe(3+)-clay / xylene / 12 h / Heating 4.1: 88 percent / K2CO3; H2O / ethyl acetate / 12 h / Heating 5.1: Et3N; DMAP / CH2Cl2 / 3 h / Heating View Scheme

1: 85 percent / K3<Fe(CN)6>-K2CO3 / (DHQ2-TP)-OsO4 / 2-methyl-propan-2-ol; H2O 2: 98 percent / SOCl2, pyridine / 2 h / 0 °C 3: 60 percent / toluene / 4 h / Heating 4: PTS / toluene / Heating 5: K2CO3, H2O / ethyl acetate / 12 h / Heating 6: Et3N / CH2Cl2 View Scheme

1.1: FeCl3*6H2O / chlorobenzene; methanol / 0.5 h / Heating 1.2: 66 percent / CH3SO3H / chlorobenzene; methanol / 2 h / Heating 2.1: 89 percent / aq. K2CO3 / ethyl acetate / 7 h / Heating 3.1: 90 percent / DMAP / CH2Cl2 / 5 h / Heating View Scheme

1: 98 percent / SOCl2; pyridine / 2 h / 0 °C 2: 50 percent / Fe(3+)-clay / xylene / 12 h / Heating 3: 88 percent / K2CO3; H2O / ethyl acetate / 12 h / Heating 4: Et3N; DMAP / CH2Cl2 / 3 h / Heating View Scheme

1: 50 percent / Fe(3+)-clay / xylene / 12 h / Heating 2: 88 percent / K2CO3; H2O / ethyl acetate / 12 h / Heating 3: Et3N; DMAP / CH2Cl2 / 3 h / Heating View Scheme