Abstract
2,3-Dihydrofuro[3,2-c]coumarin-3-one was synthesized in quantitative yield from 3-(ω-bromoacetyl)-4-hydroxycoumarin in the presence of nucleophiles (including solvents). This compound undergoes keto-enol tautomerization and easily reacts with aromatic and heteroaromatic aldehydes to form crotonization products having a Z configuration and exhibiting strong fluorescence.
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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 1873–1883, September, 2011.
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Kondratova, N.A., Kazheva, O.N., Aleksandrov, G.G. et al. Structure and condensation reactions of 2,3-dihydrofuro[3,2-c]coumarin-3-one. Russ Chem Bull 60, 1906–1916 (2011). https://doi.org/10.1007/s11172-011-0287-4
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DOI: https://doi.org/10.1007/s11172-011-0287-4