synthesis of N-methyl-3-chalcogeno-indoles has been developed via iodine-mediatedelectrophilicannulation reactions of 2-alkynylaniline derivatives with disulfides or diselenides. In the presence of iodine and iron, a variety of 2-alkynylanilines selectively underwent the electrophilicannulation with numerous disulfides or diselenides leading to the corresponding 3-sulfenylindoles and 3-selenenylindoles
A facile route to 5-methyl-5H-indeno[1,2-c]quinolones via palladium-catalyzed cyclization of 2-alkynylbromobenzenes with N,N-dimethyl-2-alkynylanilines
作者:Xiaolin Pan、Yong Luo、Yunyan Kuang、Guangming Li
DOI:10.1039/c4ob00706a
日期:——
A tandem reaction catalyzed by palladium is developed to provide a facile and simple route for the synthesis of 5-methyl-5H-indeno[1,2-c]quinolones.
Synthesis of 3-((trifluoromethyl)thio)indoles via a reaction of 2-alkynylaniline with trifluoromethanesulfanylamide
作者:Jie Sheng、Shaoyu Li、Jie Wu
DOI:10.1039/c3cc45958f
日期:——
3-((Trifluoromethyl)thio)indoles can be synthesized by a palladium(II)-catalyzed reaction of 2-alkynylaniline with trifluoromethanesulfanylamide in the presence of bismuth(III) chloride. The presence of bismuth(III) chloride is crucial for the success of this transformation, which activates the trifluoromethanesulfanylamide during the reaction.
A palladium‐catalyzedreaction of 2‐alkynylaniline, isocyanides, and silver acetate is described, leading to 3‐amidylindoles in moderate to good yields. During the process, five new bonds are formed with high reaction efficiency in one‐pot procedure.