Investigating Metastable Gelation Behavior of Coumarin‐Derived β‐Enaminone‐Boron Difluoride Complexes

Abstract Gelation behavior was unearthed while investigating the photophysical properties of β‐enaminones and their difluoroboron complexes. To perform a systematic investigation, a library of β‐enaminone's difluoroboron complexes was prepared to examine their gelation behavior in organic solvents. Among the prepared compounds, the N ‐butyl amine‐substituted β‐enamino diketone was found to exhibit metastable gelation properties in a mixed solvent system (methylene chloride and hexane). Our studies suggest that the presence of N‐ butylamine moiety along with N,N ‐dimethylamino substituent at difluoroboron enaminones is indispensable in imparting the metastable gelation behavior.