Rhodium-Catalyzed Annulations and Heck Coupling/Aza-Michael Addition for the Synthesis of Benzothiadiazinoisoquinoline 6,6-Dioxides and Benzothiadiazinoisoindole 5,5-Dioxides, Respectively
作者:Subramani Kumaran、Kanniyappan Parthasarathy
DOI:10.1021/acs.joc.2c00964
日期:2022.9.16
benzothiadiazinoisoquinoline 6,6-dioxides and benzothiadiazinoisoindole 5,5-dioxides in good to excellent yields. These compounds are formed through a sequential Rh(III)-catalyzed C–H cyclization of dihydrophenylbenzothiadiazine 1,1-dioxides with alkynes and oxidative Heck coupling/aza-Michael addition of dihydrophenylbenzothiadiazine 1,1-dioxides with acrylates, respectively.
已经证明了一种新的有效方案,用于合成苯并噻二嗪基异喹啉 6,6-二氧化物和苯并噻二嗪基异吲哚 5,5-二氧化物,收率良好。这些化合物是通过二氢苯基苯并噻二嗪1,1-二氧化物与炔烃的顺序Rh(III)催化C-H环化和二氢苯基苯并噻二嗪1,1-二氧化物与丙烯酸酯的氧化Heck偶联/氮杂-迈克尔加成反应形成的。