作者:Lianhai Li、Waepril Kimberly S. Chua
DOI:10.1016/j.tetlet.2011.01.089
日期:2011.4
We have developed a robust approach for the synthesis of 3,4-fused isoquinolin-1(2H)-one analogs. A benzonitrile or a nicotinonitrile bearing an ortho-substituent, such as –OH, –SH, or –NHR (R = alkyl or aryl) can be deprotonated by KOtBu and then reacted with methyl 2-(bromomethyl)benzoate (8) to form its corresponding O-, S-, or N-alkylation product. The product thus formed is then treated with KOtBu
我们已经开发了一种强大的方法,用于合成3,4-融合的异喹啉-1(2H)-one类似物。带有邻位取代基(例如–OH,–SH或–NHR(R =烷基或芳基))的苄腈或烟腈可以通过KO t Bu进行质子化,然后与2-(溴甲基)苯甲酸甲酯反应(8)形成其相应的O-,S-或N-烷基化产物。然后将如此形成的产物再次用KO t Bu处理以引发级联过程,该级联过程将导致其相应的3,4-稠合的异喹啉-1(2H)-一的形成。这种多步合成以及最终产物的纯化可以一锅法完成。