Ru(II)-catalyzed [2 + 2 + 2] cycloaddition of 1,2-bis(propiolyl)benzenes with monoalkynes leading to substituted anthraquinones.
[2 + 2 + 2] cycloadditions of 1,2-bis(propiolyl)benzenes with monoalkynes were effectively catalysed by Cp*RuCl(cod) under mild conditions to give substituted anthraquinones in moderate to high yields.
Yamamoto
Yoshihiko
Y
Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Chiksa, Nagoya 464-8603, Japan. yamamoto@apchem.nagoya-u.ac.jp
Hata
Koichi
K
Arakawa
Takayasu
T
Itoh
Kenji
K