Reactions of organoboron polymers prepared by hydroboration polymerization

Summary

Organoboron polymers were prepared by hydroboration polymerization between various dienes and thexylborane. These polymers were reacted with α-furyllithium followed by the treatment with acetic acid and then by the oxidative treatment to give the corresponding polyalcohols having primary and tertiary hydroxyl groups. The structures of the polyalcohols obtained were characterized by¹H-NMR compared with that for model compound, which was prepared by the reaction of dioctylthexylborane with α-furyllithium. These conversions from organoboron polymers to polyalcohols include the migrations of two polymeric chains from boron atom to carbon and the ring-opening of furan ring.