The Divergent Synthesis of Nitrogen Heterocycles by Rhodium(II)-Catalyzed Cycloadditions of 1-Sulfonyl 1,2,3-Triazoles with 1,3-Dienes
作者:Hai Shang、Yuanhao Wang、Yu Tian、Juan Feng、Yefeng Tang
DOI:10.1002/anie.201400426
日期:2014.5.26
enable the efficient synthesis of highly functionalized 2,5‐dihydroazepines from readily available precursors. In some cases, the reaction pathway could divert to formal aza‐[3+2] cycloadditions, thus leading to 2,3‐dihydropyrroles. In this context, the titled reaction represents a capable tool for the divergent synthesis of two types of synthetically valuable aza‐heterocycles from common rhodium(II) iminocarbene
已开发出第一批由铑(II)催化的1-磺酰基1,2,3-三唑与1,3-二烯的氮杂[4 + 3]环加成反应,可高效合成高度官能化的2,5-二氢a庚因从现成的前体中提取。在某些情况下,反应途径可能转移至正式的aza- [3 + 2]环加成反应,从而导致2,3-二氢吡咯。在这种情况下,标题反应代表了一种从普通的铑(II)亚氨基卡宾中间体多样化合成两种有价值的氮杂-杂环化合物的有效工具。