1. For catalytic hydroboration, Pinacol pinacolborane and catecholborane are widely used. 2. A common migration introduction of carbon is a pinacol rearrangement. 3. Ketyls are also involved in the pinacol coupling reaction and the McMurry reaction. 4. Other key reactions encountered in this synthesis are a pinacol coupling and a Reformatskii reaction. 5. The Prins-pinacol reaction is a cascade reaction of a Prins reaction and a pinacol rearrangement. 6. The Prins-pinacol reaction is a cascade reaction of a Prins reaction and a pinacol rearrangement. 7. Likewise, acetone is converted to pinacol with a magnesium-mercury amalgam in a pinacol coupling reaction. 8. Likewise, acetone is converted to pinacol with a magnesium-mercury amalgam in a pinacol coupling reaction. 9. In some cases the reaction type is also called a "'retropinacol rearrangement "'( see Pinacol rearrangement ). 10. The protecting group was removed to give diol "'4.7 "'in preparation for the pinacol coupling reaction.