Synthesis of 4,5,6-trisubstituted-1,3-dihydroisobenzofurans by virtue of palladium-catalyzed domino carbopalladation of bromoenynes and internal alkynes
作者:Munmun Ghosh、Raju Singha、Shubhendu Dhara、Jayanta K. Ray
DOI:10.1039/c5ra16546f
日期:——
construction of 4,5,6-trisubstituted-1,3-dihydroisobenzofurans via palladium-catalyzed domino carbopalladation of bromoenynes and internal alkynes. The reaction followed domino intramolecular Heck cyclization (5-exo-dig) and termination of the resulting diene with an internal alkyne to give highly substituted isobenzofurans in moderate to good yields.
通过钯催化的溴代炔烃和内部炔基的多米诺卡巴钯化反应,已经开发出一种有效的异环合成方案,用于构建4,5,6-三取代-1,3-二氢异苯并呋喃。反应发生在多米诺骨牌分子内的Heck环化反应(5- exo- dig)并用内部炔烃终止生成的二烯,以中等到良好的产率得到高度取代的异苯并呋喃。