The reactions of 1,1-diarylallenes with N-acyliminium cations generated from hydroxylactams
作者:Anna G. Larina、Alexander S. Filatov、Vitalii V. Suslonov、Alexander P. Molchanov、Alexander V. Stepakov
DOI:10.1016/j.tet.2017.05.071
日期:2017.7
6a-dihydroisoindolo[2,1-a]quinolin-11(5H)-ones were prepared by BF3·OEt2-mediated reactions of 1,1-diarylallenes with the N-acyliminium cations generated from 2-aryl-3-hydroxyisoindolin-1-ones. 2-Aryl-3-(3-aryl-1H-inden-2-yl)isoindolin-1-ones underwent an intramolecular cyclization on treatment with methanesulfonic acid with the formation of compounds exhibiting the indeno[2,1-c]isoindolo[2,1-a]quinoline skeleton
描述了1,1-二芳基烯与N-酰基亚胺阳离子反应的第一个例子。2-芳基-3-(3-芳基-1 H-茚满-2-基)异吲哚啉-1-酮和6-亚甲基-5,5-二芳基-6,6a-二氢异吲哚并[2,1- a ]喹啉-通过BF 3 ·OEt 2介导的1,1-二芳基亚芳基与由2-芳基-3-羟基异吲哚啉-1-酮生成的N-酰基亚胺阳离子的反应制备了11(5 H)-ones。用甲磺酸处理2-芳基-3-(3-芳基-1 H-茚满-2-基)异吲哚啉-1-酮并进行分子内环化反应,形成具有茚并[2,1- c ]异吲哚基的化合物[2,1- a]喹啉骨架。