REACTIONS OF ORGANOBORON POLYMERS PREPARED BY HYDROBORATION POLYMERIZATION .6. REDUCTIVE TREATMENT AFTER THE REACTION WITH ALPHA-FURYLLITHIUM OR WITH DICHLOROMETHYL METHYL-ETHER

Organoboron polymers consisting of carbon-boron bonds in the main chai ns were prepared by hydroboration polymerization of various dienes wit h thexylborane. These polymers were reacted with alpha-furyllithium fo llowed by treatment with acetic acid to give the corresponding poly(al cohol)s. This conversion includes the migrations of two polymeric main chains from boron atom to carbon and the reductive cleavage of carbon -boron bonds in the resulting boron-containing polymers. The structure s of the poly(alcohol)s obtained were characterized by H-1-NMR in comp arison with that of model compound, which was prepared by the reaction of dioctylthexylborane with alpha-furyllithium followed by reductive treatment. The organoboron polymer prepared from 1,7-octadiene and the xylborane was also reacted with dichloromethyl methyl ether followed b y acidolysis to form hydrocarbon polymer without obvious scission of p olymeric main chain.