Palladium(II)-Catalyzed Direct C-H Alkenylation of Thienothiophene and Related Fused Heteroarenes.
The palladium-catalyzed direct alkenylation of thieno[3,2-b]thiophene takes place regioselectively at C2. Symmetrically and unsymmetrically 2,5-dialkenylated thienothiophene derivatives can be prepared by the catalytic procedure. Related fused thienyl and carbazole derivatives also undergo regioselective direct alkenylation.
Department of Applied Chemistry, Faculty of Engineering, Osaka University , Suita, Osaka 565-0871, Japan.
Tomohiro
T
Morita
Department of Applied Chemistry, Faculty of Engineering, Osaka University , Suita, Osaka 565-0871, Japan.|ACT-C, JST , 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan.|Department of Chemistry, Graduate School of Science, Osaka City University , 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan.
Tetsuya
T
Satoh
Department of Applied Chemistry, Faculty of Engineering, Osaka University , Suita, Osaka 565-0871, Japan.
Masahiro
M
Miura