Synthesis of bi- and tricyclic arylboronates via Cp*RuCl-catalyzed cycloaddition of alpha,omega-diynes with ethynylboronate.
In the presence of 5-10 mol% Cp*RuCl(cod), 1,6- and 1,7-diynes were allowed to react with an ethynylboronate at ambient temperature to give rise to bi- and tricyclic arylboronates in 64-93% isolated yields.
Yamamoto
Yoshihiko
Y
Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Chikusa, Nagoya, 464-8603, Japan. yamamoto@apchem.nagoya-u.ac.jp
Hattori
Kozo
K
Ishii
Jun-ichi
J
Nishiyama
Hisao
H
Itoh
Kenji
K