S. Saito et al., Palladium (0)-catalyzed cross-benzannulation between conjugated enynes. Reactivity-controlled synthesis of multifunctionalized benzenes, ORG LETT, 2(24), 2000, pp. 3853-3855
[GRAPHICS]
The synthesis of multifunctionalizbenzenes such as polysubstituted alkoxyca
rbonyl- or cyanostyrenes was carried out by the regioselective cross-benzan
nulation between conjugated enynes in the presence of Pd(PPh3)(4).