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.
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.
Synthesis of Polycyclic Chromene Cores through Gold (I)‐Catalyzed Intramolecular Hydroarylation Reaction (IMHA)
A gold (I)‐catalyzed approach for the construction of polycyclic chromene cores was developed. The reaction proceeds in good to excellent yields under mild condition. In the presence of unsymmetrically substituted propargylic ethers a good selectivity has been achieved.