Synthesis of calix[4]arene and porphyrin tethering four chiral five-membered cyclic carbonates.
Calix[4]arene tethering four chiral five-membered cyclic carbonates 1c was synthesized by O-glycidylation of p-tert-butylcalix[4]arene 1a with (R)-glycidyl tosylate, followed by carbonation with carbon dioxide catalyzed by lithium bromide. Porphyrin tethering chiral five-membered cyclic carbonates 2c was similarly synthesized.
Takata
Toshikazu
T
Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Japan. takata@chem.osakafu-u.ac.jp
Takagi
Hideyuki
H
Furusho
Yoshio
Y