An Isoxazole Strategy for Molybdenum-Mediated Synthesis of 5-Mono- and 4,5-Disubstituted 1<i>H</i>-Pyrrole-2,3-diones
作者:Ekaterina E. Galenko、Aleksandra M. Puzyk、Mikhail S. Novikov、Alexander F. Khlebnikov
DOI:10.1021/acs.joc.2c00386
日期:2022.5.6
The synthesis of 5-aryl- and 4-aryl/hetaryl/cyclopropyl/alkynyl-5-aryl-1H-pyrrole-2,3-diones by formal isomerization of isoxazole-5-carbaldehydes mediated Mo(CO)6 in wet MeCN has been developed. The resulting 1H-pyrrole-2,3-diones are good precursors for substituted 1H-pyrrolo[2,3-b]quinoxalines.
通过异恶唑-5-甲醛介导的 Mo(CO) 6在湿 MeCN 中的形式异构化合成 5-芳基和 4-芳基/杂芳基/环丙基/炔基-5-芳基-1 H-吡咯-2,3-二酮已经被开发出来。得到的 1 H-吡咯-2,3-二酮是取代的 1 H-吡咯并[2,3 - b ]喹喔啉的良好前体。