Application of a mesoporous nanomaterial based on basic ionic liquid anchored to silica as a highly effective catalyst for the production of 2amino4Hchromenes

This research describes application of a mesoporous nanostructured material based on basic ionic liquid anchored to silica, i.e. nano2(dimethylamino) lt;em gt;N lt;/em gt;(silica lt;em gt;n lt;/em gt;propyl) lt;em gt;N lt;/em gt;, lt;em gt;N lt;/em gt;dimethylethanaminium chloride {nano[DMSPDE][Cl]}, as a highly effective and heterogeneous nanocatalyst for the production of 2amino4 lt;em gt;H lt;/em gt;chromenes. The onepot multicomponent reaction of aromatic aldehydes with malononitrile and 1naphthol in the presence of nano[DMSPDE][Cl] under solventfree conditions affords the title compounds with high yields in short times.