Convenient synthesis of 3-vinyl and 3-styryl coumarins |
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| Authors: | Gordo Joana Avó João Parola A Jorge Lima João C Pereira António Branco Paula S |
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| Affiliation: | REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, Portugal. |
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| Abstract: | A variety of 2-hydroxy aldehydes on reaction with 3-butenoic acid afford in a one-pot reaction the corresponding 3-vinylcoumarins. As expected, extension of the delocalized π-electron system accomplished by Heck coupling reactions with aryl halides results in an increased fluorescence of the compounds whose applicability is yet to be established. |
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