Microwave acceleration of the Pechmann reaction on graphite/montmorillonite K10: application to the preparation of 4-substituted 7-aminocoumarins
作者:Stéphane Frère、Valérie Thiéry、Thierry Besson
DOI:10.1016/s0040-4039(01)00295-7
日期:2001.4
Efficient synthesis of 7-aminocoumarins was performed via the Pechmann reaction by microwave irradiation of the reactants on solidsupport (graphite/montmorilloniteK10). In this convenient new methodology, the strong thermal effect due to graphite/microwaves interaction is associated with the acidic catalyst role of the clay.