Microwave-Assisted Copper-Powder-Catalyzed Coupling and Cyclization of β-Bromo-α,β-unsaturated Carboxylic Acids with 1,3-Diketones Leading to 2H-Pyran-2-ones
作者:Chan Cho、Son Ho、Ho-Sang Sohn
DOI:10.1055/s-0034-1379103
日期:——
Abstract β-Bromo-α,β-unsaturated carboxylic acids were coupled and cyclized with 1,3-diketones by microwave irradiation in the presence of a catalytic amount of copper powder and base to give the corresponding 2H-pyran-2-ones in good to high yields. β-Bromo-α,β-unsaturated carboxylic acids were coupled and cyclized with 1,3-diketones by microwave irradiation in the presence of a catalytic amount of
摘要 在催化量的铜粉和碱存在下,通过微波辐照将β-溴-α,β-不饱和羧酸偶联并与1,3-二酮环化,得到相应的2 H-吡喃-2-酮高产。 在催化量的铜粉和碱存在下,通过微波辐照将β-溴-α,β-不饱和羧酸偶联并与1,3-二酮环化,得到相应的2 H-吡喃-2-酮高产。