Copper-Catalyzed Sulfonylation/Cyclization of Pent-4-ynamides toward Sulfonyl-Functionalized Pyrrol-2-ones
作者:Danhua Wu、Menglu Jiang、Juan-Juan Wang、Wei Yu
DOI:10.1021/acs.orglett.3c00441
日期:2023.3.31
A domino sulfonylation/intramolecular C–N coupling/dehydrogenation reaction was realized between pent-4-ynamides and sulfonyl chlorides by catalysis of Cu(acac)2 and 2,2′-bis(diphenylphosphanyl)-1,1′-binaphthalene. The reaction provides a convenient approach to sulfonyl-functionalized pyrrol-2-ones. This method can also be applied to the synthesis of 3-alkylidene isoindolinones from 2-ethynyl-benzamides
在 Cu(acac) 2和 2,2'-双(二苯基磷酰基)-1,1'-联萘的催化下,pent-4-ynamides 和磺酰氯之间实现了多米诺磺酰化/分子内 C-N 偶联/脱氢反应。该反应为磺酰基功能化的吡咯-2-酮提供了一种简便的方法。该方法也可用于从 2-乙炔基-苯甲酰胺合成 3-亚烷基异吲哚啉酮。