Reactions of isoquinolines activated by 2-halopropionyl chlorides with tributyltin hydride afford selectively 2-(2-halopropionyl)-1,2-dihydroisoquinolines in good yields, the radical cyclizations of which furnish benzo[f]indolizidine systems. The above two reactions can be consecutively achieved in one-pot. Furthermore, the present procedures are extended to synthesis of 12,12a-dihydroisoindolo[2,
由 2-卤代
丙酰氯活化的
异喹啉与氢化三
丁基锡的反应以良好的产率选择性地提供 2-(2-卤代丙酰基)-1,2-二氢
异喹啉,其自由基环化提供苯并[f]
吲哚里西啶系统。以上两个反应可以在一锅法中连续完成。此外,本程序扩展到 12,12a-二氢异
吲哚并 [2,3-b]isoquinolin-5(7H)-one 的合成。