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]furan derivatives, 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。