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Convenient Synthesis of 3-Vinyl and
Gordo, Joana; Avó, João; Parola, Jorge; Lima, João; Pereira, António; Branco, PaulaA 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.
New Methodology for the Synthesis of 3-Stiryl Coumarins
Branco, Paula; Gordo, Joana; Pereira, AntónioCoumarins, a common motif in a variety of naturally occurring compounds, have attracted intense interest in recent years due to their diverse pharmacological properties, namely as anticoagulant, antimicrobial, antibacterial, anticancer, anti-HIV and antioxidant.1 Moreover, these series of compounds rises to one of the most extensively investigated and commercially significant groups due to their outstanding opt...
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