1: aqueous sulfuric acid; mercury (II)-sulfate 2: benzene 3: water View Scheme

(i) nBuLi, hexane, THF, (ii) ZnI2, (iii) /BRN= 1209228/; Multistep reaction;

(i) nBuLi, hexane, THF, (ii) ZnI2, (iii) /BRN= 635680/; Multistep reaction;

(i) nBuLi, hexane, THF, (ii) ZnI2, (iii) /BRN= 385735/; Multistep reaction;

(i) nBuLi, hexane, THF, (ii) ZnI2, (iii) /BRN= 1744086/; Multistep reaction;

1: zirconocene dichloride / hexane / 3 h / 40 °C / |Inert atmosphere 2: boron trifluoride diethyl etherate / hexane / -10 - 20 °C / |Inert atmosphere 3: sodium hydroxide; dihydrogen peroxide / hexane; water / 24 h / 0 °C View Scheme