S. Narasimhan et al., REMARKABLE REGIOSELECTIVE HYDROBORATION OF TERMINAL ALKENES BY CALCIUM BOROHYDRIDE, Tetrahedron letters, 36(7), 1995, pp. 1141-1144
Calcium borohydride is found to hydroborate unsaturated systems in the
presence of ethyl acetate. The reaction exhibits remarkable selectivi
ty towards terminal double bonds. Several Z-11-alken-1-ol pheromones a
re synthesized using this method.