Molecular Iodine Mediated Regioselective Synthesis of Pyranocoumarins and Bis-Fused Benzo-2H-pyran Derivatives
摘要:
A simple and straightforward approach for the regioselective synthesis of pyranocoumarin and bis-fused benzo-2H-pyran derivatives using mild, easy to handle, and cheaper molecular iodine mediated heterocyclization is described.
Free-radical-mediated copper-catalyzed triazole formation under UV-irradiation
作者:Debkumar Nandi、Abu Taher、Rafique Ul Isalm、Kaushik Mallick
DOI:10.1002/aoc.4733
日期:2019.4
efficient catalyst for the 1,2,3‐triazole formation reaction. The catalyst shows excellent performance when the reaction was carried out under ultraviolet irradiation conditions due to the photo‐induced free‐radicalformation from the MPEG. A detailed mechanistic discussion on the free‐radical generation, free‐radical‐mediated hydrogen abstraction and triazole formation has been outlined in this manuscript
A simple and straightforward approach for the regioselective synthesis of pyranocoumarin and bis-fused benzo-2H-pyran derivatives using mild, easy to handle, and cheaper molecular iodine mediated heterocyclization is described.
SUZUKI EIJI; KATSURAGAWA BUNZO; INOUE SHOJI, J. CHEM. RES. SYNOP., 1979, NO 3, 110-111