Organolanthanide-catalyzed cyclization/boration of 1,5-and 1,6-dienes

[GRAPHICS] 1,5- and 1,6-Dienes undergo a cyclization/boration reaction in the presence of a catalytic amount of Cp*Sm-2 . THF. The resulting organoboranes can be oxidized to the corresponding primary cyclic alcohols using standard conditions.