Molecular crystals and liquid crystals science technology. Section A, Molecular crystals and liquid crystals/Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals · 1994 · 16 citations · 3 references
Natural SciencesChemistryOrganic ChemistryHeterocyclic ChemistryHeterocyclic CompoundsPhotochemical SynthesisPhotochemistryRoom-temperature Synthesis
Abstract New photochromic 2,2-diphenyl-[2H]-chromenes 1–6 annellated with nitrogenated six-membered ring have been synthetized by optimized reaction of suitable metal phenolates and β-phenyl cinnamaldehyde. All compounds exhibit photochromic behavior at room temperature. Chemical yields and photochromic characteristics depend significantly on the relative position of annellation on the chromenic moiety.
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