A palladium-catalyzed heck-type cascadecyclization of (Z)-1-iodo-1,6-dienes with N-tosyl hydrazones is reported. The alkylpalladium intermediate coupled with the diazo compound, generating the second alkylpalladium species bearing two β-H, which generated a terminal alkene as the major products in the anti-Zaitsev way via the highly regioselective β-H elimination. It provided a new way to synthesize
The Pd(0)-catalyzed asymmetric vinylborylation of (Z)-1-iodo-dienes with B2pin2 is reported, which provides access to 3,3-disubstituted tetrahydropyridine with excellent enantioselectivity.