Rhodium-Catalyzed Denitrogenative [2,3] Sigmatropic Rearrangement: An Efficient Entry to Sulfur-Containing Quaternary Centers
作者:Dongari Yadagiri、Pazhamalai Anbarasan
DOI:10.1002/chem.201302653
日期:2013.11.4
blocks: α‐Sulfenylated imines containing a quaternary center, an ubiquitous subunit and excellent building block, were achieved by rhodium‐catalyzed denitrogenative [2,3] sigmatropic rearrangements of N‐sulfonyl‐1,2,3‐triazoles with allylaryl(alkyl) sulfides. Coupling of this methodology with a copper‐catalyzed cycloaddition reaction provides a platform for the direct regioselective functionalization of
化学结构单元:通过铑催化的N-磺酰基-1,2,3-三唑与烯丙基芳基的铑催化脱氮[2,3]σ重排,可实现包含季中心,普遍存在的亚基和优异结构单元的α-亚磺酰基亚胺。烷基)硫化物。该方法与铜催化的环加成反应的耦合为炔烃的直接区域选择性官能化提供了平台(参见方案; TC =噻吩羧酸酯; Ts =对甲苯磺酰基)。