Three-Component Coupling Reactions of Maleimides, Thiols, and Amines: One-Step Construction of 3,4-Heteroatom-functionalized Maleimides by Copper-Catalyzed C(<i>sp</i>
<sup>2</sup>
)−H Thioamination
作者:Zhen-Hua Yang、Hong-Ru Tan、Yu-Long An、Yu-Wei Zhao、Hao-Peng Lin、Sheng-Yin Zhao
DOI:10.1002/adsc.201700955
日期:2018.1.4
A copper‐catalyzed intermolecular thioamination of maleimides with thiols and amines has been developed. A diverse range of 3‐amino‐4‐thiomaleimides and 3,4‐dihydropyrrolo[3,4‐b][1,4]thiazine‐5,7(2H,6H)‐diones were obtained with good yields, involving C−N and C−S bond formations. This methodology is very practical and features high atom economy, excellent functional group tolerance.
已经开发了铜催化的马来酰亚胺分子内硫醇与硫醇和胺的氨基化反应。获得了各种3-氨基-4-硫代马来酰亚胺和3,4-二氢吡咯并[3,4- b ] [1,4]噻嗪-5,7(2 H,6 H)-二酮,收率高,涉及CN和CS键的形成。该方法非常实用,具有高原子经济性,出色的官能团耐受性。