CF3CO3H in trifluoroacetic acid T=30°C; 1.25 h;

<b>Multi-step reaction with 2 steps<br /> </b>1: 87 percent / aq. NaOH, n-Bu₄NBr / benzene / 0.5 h<br />2: 68 percent / acetic acid, conc. H₂SO₄, iodobenzene diacetate / 0.17 h / 0 &deg;C<br /> <br /> &nbsp;

<b>Multi-step reaction with 3 steps<br /> </b>1.1: potassium carbonate / acetone / 8 h / 25 &deg;C / |Inert atmosphere<br />2.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 0.5 h / 0 - 25 &deg;C / |Inert atmosphere<br />2.2: 0.33 h / 25 &deg;C / |Inert atmosphere<br />2.3: 0.33 h / 25 &deg;C / |Inert atmosphere<br />3.1: potassium carbonate / acetone / 20 h / 25 - 57 &deg;C / |Inert atmosphere<br /> <br /> &nbsp;