作者:Khalid M. Khan、Nida Ambreen、Uzma Rasool Mughal、Saima Jalil、Shahnaz Perveen、M. Iqbal Choudhary
DOI:10.1016/j.ejmech.2010.05.065
日期:2010.9
3-formylchromone (1) and its derivatives 2–24 and evaluation of their potentialantiinflammatory activities is reported here. These compounds were characterized by 1H NMR, EI MS, IR, and UV spectroscopic techniques and elemental analysis. The synthesized compounds were evaluated by using various in vitro and in vivo assay models for antiinflammatory activity and their effects were compared with known standard
Indium triflate: a new catalyst for (4 + 2)-cycloaddition of chromone Schiff ’s bases
作者:Sunil Gadhwal、Jagir S. Sandhu
DOI:10.1039/b000923g
日期:——
3,4-Dihydro-2H-pyran reacts with a variety of chromone Schiffâs bases 3 in the presence of indium and scandium triflates at ambient temperature and pressure to give the endo cycloadducts 4 regiospecifically in high yields.