Thexylborane reaction with 1,7-octadiene

For the selective preparation of polyketone, the organoboron polymer prepared by hydroboration polymerization between thexylborane and 1,7-octadiene was subjected to reaction with KCN [8]. After oxidation of the reaction mixture followed by coagulation, the desired polyketone was obtained selectively. The polymer formed was a... 

Scheme 2 demonstrates the versatile reactions of organoboron polymers prepared by hydroboration polymerization. For example, the polymer prepared from thexylborane and 1,7-octadiene was reacted with carbon monoxide at 120°C followed by treatment with NaOH and H2O2 to produce a poly alcohol [7]. This conversion includes the migrations of polymer chain and thexyl group from boron atom to carbon as shown in Scheme 3. When this reaction was carried out under milder condition,...

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