Synthesis of Sulfoximines by Copper-Catalyzed Oxidative Coupling of Sulfinamides and Aryl Boronic Acids
作者:Xi Zou、Hanbing Wang、Bing Gao
DOI:10.1021/acs.orglett.3c02970
日期:2023.10.27
novel copper-catalyzed cross-coupling reaction of sulfinamides and aryl boronic acids is developed. The reaction is highly chemoselective and stereospecific, which allows mild synthesis of optically pure sulfoximines with broad scope and functional group tolerance. The utility of this method is demonstrated by the asymmetric synthesis of pharmaceutical intermediates.
available chiral sulfinamides into pharmaceutically useful chiral sulfoximines viadirect SIV-functionalization is synthetically attractive but challenging due to the competitive reaction of N-functionalization. Herein, we disclose a novel strain-release strategy to access stereospecific and chemoselective SIV-arylation and alkenylation of sulfinamides using arynes and strained cyclic alkynes. This method tolerates
通过直接S IV官能化将市售手性亚磺酰胺转化为药用手性亚磺酰亚胺在合成上具有吸引力,但由于N官能化的竞争反应而具有挑战性。在此,我们公开了一种新的应变释放策略,以使用芳炔和应变环炔实现亚磺酰胺的立体特异性和化学选择性S IV -芳基化和烯基化。该方法可耐受氮中心 (N–R) 上官能团前所未有的化学多样性。通过密度泛函理论计算阐明了高 S IV选择性的起源,表明芳炔底物的逐步机制和环状炔烃的协调机制。