A convenient method for the synthesis of 2,5-difunctionalized phospholes bearing ester groups.
Symmetrically and unsymmetrically 2,5-difunctionalized phospholes bearing ester groups were prepared in a one-pot procedure from the corresponding diynes and dichloro(phenyl)phosphine via titanacyclopentadienes. The observed optical properties of the functionalized phospholes show that the pi-conjugative push-pull interaction between the 2- and 5-substituents plays an important role in controlling the light-emitting efficiency.
Matano
Yoshihiro
Y
Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan. matano@scl.kyoto-u.ac.jp
Miyajima
Tooru
T
Nakabuchi
Takashi
T
Matsutani
Yuichiro
Y
Imahori
Hiroshi
H