van Leusen reaction, with various aryl iodides is effectively promoted by a system of CuI combined with PPh3 and Na2CO3 as a ligand and a base, respectively, in DMF to produce the corresponding 2,5-diaryloxazoles in good yields.
通过van Leusen反应制得的5-芳基
恶唑与各种芳基
碘的直接芳基化反应,是通过CuI与PPh 3和Na 2 CO 3分别作为
配体和碱在
DMF中结合形成的体系有效地促进的。相应的2,5-二芳基
恶唑,收率高。