[2+2] Photodimerization of (E)-styrylthiazoles through cation-π-controlled preorientation
Cation-π-controlled preorientation of (E)-styrylthiazoles was performed in both solution and solid phases. Irradiation of (E)-styrylthiazoles in the presence of HCl produced synHT dimers in good selectivities, while little selectivity was observed without
Palladium-Catalyzed Reactions of Terminal Acetylenes and Olefins with Halo-1,3-azoles
The palladium-catalyzed reactions of 4-bromo- and 5-bromothiazoles, as well as 4-bromo and 5-bromooxazoles with terminal acetylenes gave ethynyl derivatives in 43-89percent yields, whereas the reactions of 2-bromothiazoles and iodo-N-methylimidazoles affo