Isocyanide-based MCRs: Diastereoselective cascade synthesis of perfluoroalkylated pyrano[3,4-c]pyrrole derivatives
作者:Shanxue Yang、Lan Yao、Zhenhua Fan、Jing Han、Jie Chen、Weimin He、Hongmei Deng、Min Shao、Hui Zhang、Weiguo Cao
DOI:10.1016/j.jfluchem.2021.109723
日期:2021.3
The highly diastereoselective synthesis of perfluoroalkyl-containing pyrano[3,4-c]pyrroles has been accomplished via a cascade process involving Michael addition, Passerini-type reaction, Mumm rearrangement and an oxo-Diels–Alder reaction. This domino transformation of isocyanides, methyl perfluoroalk-2-ynoates and 3-aroyl (or heteroyl) acrylic acids proceeded smoothly at room temperature and led to
含全氟烷基的吡喃并[3,4- c ]吡咯的高度非对映选择性合成是通过级联过程完成的,该过程涉及迈克尔加成,Passerini型反应,Mumm重排和羰基-狄尔斯-阿尔德反应。异氰酸酯,全氟烷-2-甲基丙烯酸甲酯和3-芳酰基(或杂芳基)丙烯酸的多米诺骨转化在室温下平稳进行,并导致形成具有高官能团相容性的高非对映选择性目标化合物,并具有良好的产率。