Electrostatic manipulation of enantiodifferentiating photocyclodimerization of 2-anthracenecarboxylate within gamma-cyclodextrin cavity through chemical modification. inverted product distribution and enhanced enantioselectivity.
In the enantiodifferentiating supramolecular photocyclodimerization of 2-anthracenecarboxylate using gamma-cyclodextrin with a dicationic side chain, a dramatic switching of the product selectivity and a significant enhancement of the enantiomeric excess were achieved by introducing a flexible dicationic sidearm to native gamma-cyclodextrin and also by lowering the temperature and solvent polarity.
Nakamura
Asao
A
ICORP Entropy Control and ERATO Photochirogenesis Projects, Japan Science and Technology Agency (JST), 4-6-3 Kamishinden, Toyonaka 560-0085, Japan. asao@chiromor.jst.go.jp
Inoue
Yoshihisa
Y