Highly sensitive chiral shift reagent bearing two zinc porphyrins.
A new type of chiral receptor (R,R)- or (S,S)-1b with C(2) symmetry was synthesized. An induced-fit type of binding behavior of 1b for diamines was revealed by CD spectroscopy. NMR studies demonstrated that 1b can function as a highly sensitive chiral shift reagent for the determination of the enantiomeric purity of chiral diamines, aziridine, and isoxazoline at the microgram level. [structure: see text]
Ema
Tadashi
T
Department of Applied Chemistry, Faculty of Engineering, Okayama University, Tsushima, Okayama 700-8530, Japan. ema@cc.okayama-u.ac.jp
Ouchi
Nozomi
N
Doi
Tokuhiro
T
Korenaga
Toshinobu
T
Sakai
Takashi
T