A Copper‐Catalyzed Interrupted Domino Reaction for the Synthesis of Fused Triazolyl Benzothiadiazine‐1‐oxides
作者:Renè Hommelsheim、Sandra Bausch、Arjuna Selvakumar、Mostafa M. Amer、Khai‐Nghi Truong 、Kari Rissanen、Carsten Bolm
DOI:10.1002/chem.202203729
日期:2023.3
A copper(I)-catalyzed interrupted domino reaction of 2-azido sulfoximines with 1-iodoalkynes affords fused triazolyl-containing benzothiadiazine-1-oxides in good to excellent yields. The substrate scope is broad and the functional group tolerance high. Mechanistic studies suggest a reaction pathway via copper π-complexes and a consecutive oxidative coupling of a relevant iodinated triazole as intermediate
铜 (I) 催化的2-叠氮基亚砜亚胺与 1-碘代炔烃的间断多米诺反应以良好至优异的产率提供了稠合的含三唑基的苯并噻二嗪-1-氧化物。底物范围广,官能团耐受性高。机理研究表明,反应途径是通过铜 π 络合物和相关碘化三唑作为中间体的连续氧化偶联。