1: 99 percent / Cs2CO3 / acetonitrile / 16 h / 20 °C 2: 87 percent / m-chloroperbenzoic acid; p-TsOH / CH2Cl2 / 6 h / Heating 3: NaOCH3; MeOH 4: 100 percent / DMAP; Et3N / dioxane / 16 h / Heating 5: 47 percent / various solvent(s) / 253 °C 6: 34 percent / NaOCH3; MeOH / 16 h / 70 °C 7: Cs2CO3 / acetonitrile / 16 h / 20 °C View Scheme

1: 70 percent / ethanol / Heating 2: 90 percent / LiAlH4 / tetrahydrofuran / 20 °C 3: 90 percent / MeSO2Cl; Et3N / CH2Cl2 / 0 °C 4: Cs2CO3 / acetonitrile / 16 h / 20 °C View Scheme

1: 100 percent / DMAP; Et3N / dioxane / 16 h / Heating 2: 47 percent / various solvent(s) / 253 °C 3: 34 percent / NaOCH3; MeOH / 16 h / 70 °C 4: Cs2CO3 / acetonitrile / 16 h / 20 °C View Scheme

1: 87 percent / m-chloroperbenzoic acid; p-TsOH / CH2Cl2 / 6 h / Heating 2: NaOCH3; MeOH 3: 100 percent / DMAP; Et3N / dioxane / 16 h / Heating 4: 47 percent / various solvent(s) / 253 °C 5: 34 percent / NaOCH3; MeOH / 16 h / 70 °C 6: Cs2CO3 / acetonitrile / 16 h / 20 °C View Scheme

1: NaOCH3; MeOH 2: 100 percent / DMAP; Et3N / dioxane / 16 h / Heating 3: 47 percent / various solvent(s) / 253 °C 4: 34 percent / NaOCH3; MeOH / 16 h / 70 °C 5: Cs2CO3 / acetonitrile / 16 h / 20 °C View Scheme

1: 47 percent / various solvent(s) / 253 °C 2: 34 percent / NaOCH3; MeOH / 16 h / 70 °C 3: Cs2CO3 / acetonitrile / 16 h / 20 °C View Scheme

1: 34 percent / NaOCH3; MeOH / 16 h / 70 °C 2: Cs2CO3 / acetonitrile / 16 h / 20 °C View Scheme

1: 90 percent / LiAlH4 / tetrahydrofuran / 20 °C 2: 90 percent / MeSO2Cl; Et3N / CH2Cl2 / 0 °C 3: Cs2CO3 / acetonitrile / 16 h / 20 °C View Scheme