Bis(4-pyridylamino)triazine-stabilized magnetite nanoparticles: preparation, characterization and application as a retrievable catalyst for the green synthesis of 4<i>H</i>-pyran, 4<i>H</i>-thiopyran and 1,4-dihydropyridine derivatives
作者:M. A. Bodaghifard、A. Mobinikhaledi、S. Asadbegi
DOI:10.1002/aoc.3557
日期:2017.2
Synthesis of bis(4‐pyridylamino)triazine stabilized on silica‐coated nano‐Fe3O4 particles, and their feasibility as a reusable heterogeneous basic catalyst are reported. The catalytic performance of this novel material was studied for the green synthesis of highly functionalized 4H‐pyran, 4H‐thiopyran and 1,4‐dihydropyridine derivatives via one‐potmulticomponent reactions. Eco‐friendly method, high
One-pot reaction of aromatic aldehydes, cyanothioacetamide and malononitrile undermicrowave irradiation proved to be an efficient way for the synthesis of 2,6-diamino-4-aryl-4H-thiopyran-3,5-dicarbonitriles without any added catalyst.