Bis-phosphoryl-bridged stilbenes synthesized by an intramolecular cascade cyclization.
Bis-phosphoryl-bridged stilbenes have been synthesized using an intramolecular cascade cyclization. They show intense blue fluorescences at longer wavelengths with higher quantum yields compared to those of the known element-bridged stilbenes. In addition, they have much lower reduction potentials due to the inductive effect of phosphoryl groups. The incorporation of the phosphoryl moiety is an effective way for the construction of highly electron-accepting pi-conjugated systems.
Fukazawa
Aiko
A
Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan.
Hara
Masanao
M
Okamoto
Toshihiro
T
Son
Eun-Cheol
EC
Xu
Caihong
C
Tamao
Kohei
K
Yamaguchi
Shigehiro
S