chromium(VI) oxide; sulfuric acid in water; acetone T=20°C; 0.5 h;

1.1: 73 percent / 630 °C / 0.02 - 0.03 Torr 2.1: H2SO4; HNO3 / -15 °C 2.2: 78 percent / H2SO4 / 0.25 h / 0 °C 3.1: 3-chlorobenzenecarboperoxoic acid (MCPBA); trifluoroacetic acid (TFA) / CH2Cl2 / 20 °C 4.1: LiOH / methanol; H2O / 20 °C 5.1: 99 percent / CrO3; H2SO4 / H2O; acetone / 30 h / 0 - 20 °C View Scheme

1.1: H2SO4; HNO3 / -15 °C 1.2: 78 percent / H2SO4 / 0.25 h / 0 °C 2.1: 3-chlorobenzenecarboperoxoic acid (MCPBA); trifluoroacetic acid (TFA) / CH2Cl2 / 20 °C 3.1: LiOH / methanol; H2O / 20 °C 4.1: 99 percent / CrO3; H2SO4 / H2O; acetone / 30 h / 0 - 20 °C View Scheme

1: 89 percent / 3-chlorobenzenecarboperoxoic acid (MCPBA); trifluoroacetic acid (TFA) / CH2Cl2 / 240 h / 20 °C 2: 98 percent / LiOH / methanol; H2O / 0.5 h / 20 °C 3: 99 percent / CrO3; H2SO4 / H2O; acetone / 30 h / 0 - 20 °C View Scheme

1: 98 percent / LiOH / methanol; H2O / 0.5 h / 20 °C 2: 99 percent / CrO3; H2SO4 / H2O; acetone / 30 h / 0 - 20 °C View Scheme

1.1: m-chloroperbenzoic acid; trifluoroacetic acid / CH2Cl2 1.2: Alkaline hydrolysis 2.1: 100 percent / CrO3; H2SO4 / acetone; H2O / 0.5 h / 20 °C View Scheme

1.1: 45 percent / 620 °C 2.1: m-chloroperbenzoic acid; trifluoroacetic acid / CH2Cl2 2.2: Alkaline hydrolysis 3.1: 100 percent / CrO3; H2SO4 / acetone; H2O / 0.5 h / 20 °C View Scheme

1.1: 95 percent / CeCl3 / tetrahydrofuran / 0.5 h / 20 °C 2.1: 73 percent / 630 °C / 0.02 - 0.03 Torr 3.1: H2SO4; HNO3 / -15 °C 3.2: 78 percent / H2SO4 / 0.25 h / 0 °C 4.1: 3-chlorobenzenecarboperoxoic acid (MCPBA); trifluoroacetic acid (TFA) / CH2Cl2 / 20 °C 5.1: LiOH / methanol; H2O / 20 °C 6.1: 99 percent / CrO3; H2SO4 / H2O; acetone / 30 h / 0 - 20 °C View Scheme

1: 3-chlorobenzenecarboperoxoic acid (MCPBA); trifluoroacetic acid (TFA) / CH2Cl2 / 20 °C 2: LiOH / methanol; H2O / 20 °C 3: 99 percent / CrO3; H2SO4 / H2O; acetone / 30 h / 0 - 20 °C View Scheme