An Expedient Route to 3-Chlorothioxanthen-9-one-10,10-dioxide and Derivation by Palladium-Catalyzed Coupling
作者:Scott. Gilbertson、Pedro Lory、Anton Agarkov
DOI:10.1055/s-2006-951520
日期:2006.11
Chemistry has been developed that allows for the synthesis of a series of novel tricyclic thioxanthen-9-one-10,10-dioxides. A regioselective synthesis of the novel core substrate 3-chlorothioxanthen-9-one-10,10-dioxide was achieved in 85% yield over three steps without the need for chromatographic purification. Subsequent microwave-assisted coupling methodology afforded the desired novel 3-substituted tricyclic compounds in good to excellent yield.
已开发出一种新的化学合成方法,可合成一系列新型三环噻喹啉-9-酮-10,10-二氧化物。通过三步反应成功实现了新型核心底物3-氯噻喹啉-9-酮-10,10-二氧化物的区域选择性合成,收率达到85%,且无需色谱纯化。随后,采用微波辅助偶联方法合成了所需的新型3-取代三环化合物,收率良好至优异。