pyridine; chromium(VI) oxide in dichloromethane 0.25 h;

1: 95 percent / ZnI2 / 0.5 h / Ambient temperature 2: 59 percent / HCl / 16 h / Ambient temperature 3: 60 percent / CrO3, pyridine / CH2Cl2 / 0.25 h View Scheme

1: 59 percent / HCl / 16 h / Ambient temperature 2: 60 percent / CrO3, pyridine / CH2Cl2 / 0.25 h View Scheme

1: 4-iodobenzoic acid ethyl ester With phenyllithium in diethyl ether; cyclohexane T=-60°C; 1.13889E-05 h; Flow reactor; 2: oxalic acid diethyl ester in diethyl ether; cyclohexane T=-60°C; 0.000466667 h; Flow reactor; 3: With water; acetic acid in tetrahydrofuran; hexane Temperature;