1: 50 percent / DDQ / benzene / 12 h / Heating 2: 75 percent / anhydrous potassium carbonate / acetone / 6 h / Heating View Scheme

2,3-dicyano-5,6-dichloro-p-benzoquinone in benzene 12 h; Heating;

<b>Multi-step reaction with 2 steps<br /> </b>1: 100 percent / 2N aq. NaOH / 1 h / Heating<br />2: 36 percent / copper powder / diphenyl ether / 3 h / Heating<br /> <br /> &nbsp;

<b>Multi-step reaction with 2 steps<br /> </b>1: 100 percent / 2N aq. NaOH / 1 h / Heating<br />2: 36 percent / copper powder / diphenyl ether / 3 h / Heating<br /> <br /> &nbsp;