Selective carbon-carbon bond formation via transition-metal catalysis. 33. Palladium-catalyzed cross-coupling reaction of .alpha.-heterosubstituted alkenylmetals. A stereoselective route to heterosubstituted dienes suitable for the Diels-Alder reaction
Selective carbon-carbon bond formation via transition-metal catalysis. 33. Palladium-catalyzed cross-coupling reaction of .alpha.-heterosubstituted alkenylmetals. A stereoselective route to heterosubstituted dienes suitable for the Diels-Alder reaction