S(<scp>vi</scp>) in three-component sulfonamide synthesis: use of sulfuric chloride as a linchpin in palladium-catalyzed Suzuki–Miyaura coupling
作者:Xuefeng Wang、Min Yang、Shengqing Ye、Yunyan Kuang、Jie Wu
DOI:10.1039/d1sc01351c
日期:——
Sulfuric chloride is used as the source of the –SO2– group in a palladium-catalyzed three-component synthesis of sulfonamides. Suzuki–Miyaura coupling between the in situ generated sulfamoyl chlorides and boronic acids gives rise to diverse sulfonamides in moderate to high yields with excellent reaction selectivity. Although this transformation is not workable for primary amines or anilines, the results
在钯催化的三组分磺酰胺合成中,氯化硫被用作-SO 2-基团的来源。原位生成的氨磺酰氯与硼酸之间的Suzuki-Miyaura偶联以中等至高收率产生了多种磺酰胺,并具有出色的反应选择性。尽管此转化不适用于伯胺或苯胺,但结果表明官能团耐受性高。通过解决脱磺酰化问题并利用廉价且容易获得的氯化硫作为二氧化硫的来源,首先实现了氧化还原中性三组分合成的磺酰胺。