Isoquinolone derivatives via a furan recyclization reaction
作者:Artem S. Dmitriev、Vladimir T. Abaev、Wolfgang Bender、Alexander V. Butin
DOI:10.1016/j.tet.2007.06.114
日期:2007.9
A new approach to the synthesis of isoquinolone derivatives has been developed. It is based on the protolytic recyclization of amides of 2-carboxybenzylfurans. It was shown that the reaction proceeds via formation of allylic alcohols of isoquinolone series, which under acidic conditions undergo isomerization into the corresponding ketones. A new condensed heterocyclicsystem of furo[2′,3′:3,4]cyclohepta[1
已经开发了合成异喹诺酮衍生物的新方法。它基于2-羧基苄基呋喃的酰胺的蛋白水解再循环。已表明反应是通过形成异喹诺酮系列的烯丙醇进行的,该烯丙基醇在酸性条件下经历异构化成相应的酮。合成了呋喃[2',3':3,4]环庚[1,2 - c ]异喹啉-8(6 H)-one的一个新的稠合杂环系统。
Synthesis and some transformations of new 9-furylnaphtho[2,3-b]furan derivatives
作者:Alexander V. Butin、Vladimir V. Mel'chin、Vladimir T. Abaev、Wolfgang Bender、Arkady S. Pilipenko、Gennady D. Krapivin
DOI:10.1016/j.tet.2006.06.027
日期:2006.8
The synthesis of a number of naphtho[2,3-b]furanderivatives, containing a furyl substituent in position 9 by intramolecular cyclization of 2-carboxy and 2-formylbis(5-alkylfur-2-yl)methanes is described. The reactivity of the title compounds in formylation, acetylation, nitration, and oxidation reactions has been investigated. It was shown that nitration of 2-methyl-9-(5-methyl-2-furyl)naphtho[2,3-b]furan-4-yl
描述了通过分子内2-羧基和2-甲酰基双(5-烷基呋喃-2-基)甲烷的分子环化反应合成许多在位置9处含有呋喃基取代基的萘并[2,3- b ]呋喃衍生物的方法。已经研究了标题化合物在甲酰化,乙酰化,硝化和氧化反应中的反应性。结果表明,硝化2-甲基-9-(5-甲基-2-呋喃基)萘并[2,3 - b ]呋喃-4-基乙酸盐会导致呋喃氧化开环而不是亲电取代。