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.
Nanomagnetic NH
<sub>2</sub>
·MIL-101(Fe)/ED as a new highly efficient catalyst for the synthesis of thiopyran and oxospiro-indolinethiopyran derivatives
In this publication, we reported an efficient MOF-based catalytic system for the synthesis of thiopyran and oxospiro-indolinethiopyran derivatives. For the first time, magnetic NH2.MIL-101(Fe)/ED w...
A convenient electro-catalyzed multicomponent synthesis of 4H-thiopyran derivatives
作者:Rahul Dubey、Vinay K. Singh、Laxmi Kant Sharma、Abhishek Upadhyay、Narendra Kumar、Rana Krishna Pal Singh
DOI:10.1039/c7nj01211j
日期:——
An environmentally benign synthesis of substituted 4H-thiopyrans was carried out by the condensation of aromatic aldehydes, malononitrile, carbon disulfide and primary amines. Constant potential electro synthesis was carried out in an undivided cell at room temperature in the presence of lithium perchlorate as a supporting electrolyte. Clean synthesis, use of electricity instead of chemical reagents