Photoinduced regioselective arylation of N-vinyllactams and methylthiazoles by tetrachlorophthalimides
作者:Yong-Miao Shen、Guenter Grampp、Fei-Fei Tao、Ning-De He、Da-Qing Chen、Miao Ye
DOI:10.1016/j.jphotochem.2013.07.017
日期:2013.11
Photoinduced reactions of 4,5,6,7-tetrahalophthalimides (1a–1h) with selected N-vinyllactams (N-vinylpyrrolidinone, N-vinylcaprolactam) and methylthiazoles respectively lead to dehydrohalogenative coupling reactions between the phthalimide and these heterocycles. These mild and metal-free coupling reactions result in regioselective and stereoselective arylation of the heterocycles by the phthalimide
4,5,6,7-四卤代邻苯二甲酰亚胺(1a-1h)与选定的N-乙烯基内酰胺(N-乙烯基吡咯烷酮,N-乙烯基己内酰胺)和甲基噻唑的光诱导反应分别导致邻苯二甲酰亚胺与这些杂环之间的脱卤化氢偶合反应。这些温和且无金属的偶联反应导致邻苯二甲酰亚胺以Z-异构体为主要产物的杂环的区域选择性和立体选择性芳基化。讨论了光反应的反应机理