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Spiropyrans Containing the Reactive Substituents in the 2H-Chromene MoietyDOI: 10.1155/2007/10583 Abstract: Some spiropyrans containing functional substituents in the [2H]-chromene part of the molecule were synthesized and their photochromic properties in solution and solid state were investigated. The presence of the formyl group in the [2H]-chromene fragment enhances the possibility to show photochromic properties in solution.
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