CuI-catalyzed one-pot synthesis of benzothiazolones from 2-iodoanilines-derived carbamates and sodium sulfide
摘要:
A copper-catalyzed procedure was developed for assembling benzothiazolones from ethyl 2-iodophenylcarbamates and sodium sulfide. A number of functional groups, such as methoxy, acyl, amide, carboxylate, trifluoromethyl, fluoro, and chloro, were tolerated under these conditions, providing benzothiazolones in good yields. (C) 2012 Elsevier Ltd. All rights reserved.
A copper catalyzed three-component reaction was developed for the synthesis of benzothiazolones. In the presence of CuBr2, the reaction of o-iodoanilines and K2S with DMF proceeded smoothly and generated the corresponding benzothiazolones with good isolated yields. DMF functioned both as the carbon monoxide source and as the reaction medium in this reaction.
[EN] METHOD FOR CATALYTICALLY ACTIVATING CARBON DIOXIDE AS CARBONYLATION REAGENT WITH INORGANIC SULFUR<br/>[FR] PROCÉDÉ POUR L'ACTIVATION CATALYTIQUE DE DIOXYDE DE CARBONE EN TANT QUE RÉACTIF DE CARBONYLATION AVEC DU SOUFRE INORGANIQUE<br/>[ZH] 无机硫催化活化二氧化碳作为羰基化试剂的方法
CuI-catalyzed one-pot synthesis of benzothiazolones from 2-iodoanilines-derived carbamates and sodium sulfide
作者:Jiaojiao Li、Yihua Zhang、Yongwen Jiang、Dawei Ma
DOI:10.1016/j.tetlet.2012.03.006
日期:2012.5
A copper-catalyzed procedure was developed for assembling benzothiazolones from ethyl 2-iodophenylcarbamates and sodium sulfide. A number of functional groups, such as methoxy, acyl, amide, carboxylate, trifluoromethyl, fluoro, and chloro, were tolerated under these conditions, providing benzothiazolones in good yields. (C) 2012 Elsevier Ltd. All rights reserved.