Phosphoryl chloride-mediated solvent-free synthesis of N-aryl-substituted azacycles from arylamines and cyclic ethers
作者:Van Hieu Tran、Minh Thanh La、Hee-Kwon Kim
DOI:10.1016/j.tetlet.2019.06.019
日期:2019.7
cyclic ethers is described. In this method, the combination of POCl3 and DBU is crucial for conversion of arylamines and cyclic ethers to five- and six-membered azacycles. Without solvent, a variety of N-aryl-substituted, five-membered azacycles (pyrrolidines, 2-methylpyrrolidines, and piperidine) and six-membered azacycles (isoindolines and tetrahydroisoquinolines) are synthesized in high yields. This
描述了一种用于从芳基胺和环醚制备N-芳基取代的氮杂环化合物的无溶剂和金属方案。在这种方法中,POCl 3和DBU的组合对于将芳胺和环状醚转化为五元和六元氮杂环至关重要。在没有溶剂的情况下,可以高收率合成各种N-芳基取代的五元氮杂环(吡咯烷,2-甲基吡咯烷和哌啶)和六元氮杂环(异吲哚啉和四氢异喹啉)。这种绿色方法为从各种环状醚制备氮杂环化合物提供了一种可持续而有效的方法。