Fully diastereospecific photochromic reaction of a thiophenophan-1-ene.
Novel thiophenophan-1-enes, which are composed of a dithienylethene unit and a chiral bridge, were synthesized and obtained as optically-active single diastereomers. Upon UV irradiation, the open-form isomers afforded single diastereomers of the closed form in 100% diastereo-excess, indicating that this system undergoes a fully diastereospecific photochromic reaction.
Takeshita
Michinori
M
Department of Chemistry and Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo 1, Saga 840-8502, Japan. michi@cc.saga-u.ac.jp
Jin-nouchi
Hirotsugu
H