F. Bosse et al., PALLADIUM-CATALYZED CROSS-COUPLING REACTIONS OF ARYLMETAL COMPOUNDS WITH BETA-SUBSTITUTCD ALPHA-IODOENONES AND A CYCLOHEXYL TRIFLATE, Tetrahedron, 52(28), 1996, pp. 9485-9498
Electron-rich arylstannanes were found to couple with alpha-iodoenones
in the presence of Pd-2(dba)(3) CHCl3, a weak-coordinating ligand [As
Ph(3) or Pd(o-tol)(3)] and CuI (0.75-1.0 equiv) to give sterically hin
dered alpha-arylcyclohexenones 15-20. In addition, compounds 19, 22 an
d 23 were prepared by Suzuki coupling reactions of the cyclohexyl deri
vatives 7c,f and 11, respectively, with the arylboronic acid 21. Copyr
ight (C) 1996 Elsevier Science Ltd