
Journal of Organic Chemistry p. 1639 - 1641 (1992)
Update date:2022-07-30
Topics:
Inouye, Masahiko
Ueno, Masaru
Kitao, Teijiro
A new spirobenzopyran was synthesized, in which recognition of alkali-metal cations induced a structural change in the molecule accompanying coloration that resulted in a proximity of two remote sites in the molecule.
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