作者:Bing Zheng、Minyan Li、Gui Gao、Yuying He、Patrick J. Walsh
DOI:10.1002/adsc.201600090
日期:2016.6.30
A palladium‐catalyzed α‐arylation of sulfonamides with aryl chlorides is presented. A Buchwald‐type pre‐catalyst formed with Kwong’s indole‐based ligand enabled this transformation to be compatible with a large variety of methyl sulfonamides and aryl chlorides in good to excellent yields. Importantly, under the optimized reaction conditions, only mono‐arylated products were observed. This method has
提出了钯催化的磺酰胺与芳基氯化物的α-芳基化反应。由K氏基于吲哚的配体形成的布赫瓦尔德型预催化剂使这种转化能够与多种甲基磺酰胺和芳基氯化物相容,并具有良好的收率。重要的是,在优化的反应条件下,仅观察到单芳基化产物。该方法已被用于舒马曲坦的有效合成,用于治疗偏头痛。