![Alkali-metal cation recognition induced isomerization of spirobenzopyrans and spironaphthoxazins possessing a crown ring as a recognition site: multifunctional artificial receptors]()
Alkali-metal cation recognition induced isomerization of spirobenzopyrans and spironaphthoxazins possessing a crown ring as a recognition site: multifunctional artificial receptorsInouye, Masahiko; Ueno, Masaru; Tsuchiya, Kikuo; Nakayama, Naomi; Konishi, Takashi; Kitao, Teijiro · The Journal of Organic Chemistry · 1992