A Three‐Component Domino Reaction Enabled by Phase‐Transfer Catalysis for the Assembly of 3‐Thioquinoline‐2,5‐Diones
作者:Lin Chen、Tian‐Hao Zhu
DOI:10.1002/adsc.202301240
日期:2024.3.19
3-dione-derived enaminones, 5-alkenyl rhodanines, and haloalkanes has been developed. This protocol produces a wide range of 3-thioquinoline-2,5-diones in yields of 52–81%. The construction of a C−S bond at the C-3 position of the quinoline-2,5-dione framework expands its structural diversity. Studies into the reaction mechanism revealed that the reaction undergoes a conjugate addition, ammonolysis,
开发了一种三组分相转移催化多米诺反应,涉及环己烷-1,3-二酮衍生的烯胺酮、5-烯基绕丹宁和卤代烷烃。该方案可产生多种 3-硫代喹啉-2,5-二酮,产率为 52-81%。在喹啉-2,5-二酮框架的C-3位上构建C−S键扩大了其结构多样性。对反应机理的研究表明,该反应经历了共轭加成、氨解、消除和亲核取代序列。通过代表性产物的克级合成证明了该反应的合成潜力。氯烷基链安装在该反应中获得的大多数产物的硫原子上。利用氯部分有利的离去性质,获得了多样化的产物衍生物。