Iron-Catalyzed C(sp<sup>2</sup>)–C(sp<sup>3</sup>) Cross-Coupling of Chlorobenzenesulfonamides with Alkyl Grignard Reagents: Entry to Alkylated Aromatics
作者:Elwira Bisz、Michal Szostak
DOI:10.1021/acs.joc.8b02886
日期:2019.2.1
compounds of high importance in organic synthesis, including the production of pharmaceuticals, agrochemicals, and plasticizers. We report the iron-catalyzed C(sp2)–C(sp3) cross-coupling of chlorobenzosulfonamides with alkyl Grignard reagents under mild and sustainable conditions. Electronically and sterically varied benzosulfonamides as well as challenging alkyl organometallics containing β-hydrogen
烷基化苯磺酰胺是有机合成中高度重要的化合物,包括药物,农用化学品和增塑剂的生产。我们报告了在温和且可持续的条件下,铁催化的氯苯磺酰胺与烷基格氏试剂的C(sp 2)–C(sp 3)交叉偶联。电子和空间变化的苯甲磺酰胺以及具有挑战性的含β-氢的烷基有机金属化合物均能以高收率或优异的收率提供烷基化的苯磺酰胺。磺酰胺代表了铁催化交叉偶联反应中最活泼的活化基团。该方法提供了准备用于药物化学应用和无痕还原裂解的烷基化苯磺酰胺。