Furan ring opening - isocoumarine ring closure: A recyclization reaction of 2-carboxyaryldifurylmethanes
作者:Vladimir T. Abaev、Artem S. Dmitriev、Sergey A. Podelyakin、Alexander V. Butin、Andrey V. Gutnov
DOI:10.1002/jhet.5570430510
日期:2006.9
A general method for the synthesis of isocoumarine derivatives has been developed. Bis(5-R-2-furyl)methylbenzoic acids (R = methyl, ethyl) underwent recyclization and subsequent cyclization into tetracyclic isochromene-1-one derivatives under treatment with hydrogen chloride in methanol. It has been shown that intermediate 4-(5-R-furan-2-yl)-3-(3-oxo-3-R-propyl)-isochromene-1-ones can be obtained selectively
作者:A. S. Dmitriev、A. S. Pilipenko、V. T. Abaev、A. V. Butin
DOI:10.1007/s10593-005-0286-1
日期:2005.9
Effective Synthesis of 3-(2-Furyl)Phthalides Under the Friedel–Crafts Reaction Conditions
作者:P. M. Shpuntov、V. A. Shcherbinin、A. V. Butin
DOI:10.1007/s10593-015-1649-x
日期:2015.3
Simple and Convenient Synthesis of 4‐Unsubstituted‐3‐(3‐Oxoalkyl)isocoumarins
作者:Alexander V. Butin、Artem S. Dmitriev、Maxim G. Uchuskin、Vladimir T. Abaev、Igor V. Trushkov
DOI:10.1080/00397910801929382
日期:2008.4.1
A simple transformation of 2-alkylfurans and 2-formylbenzoic acids into 4-unsubstituted 3-(3-oxoalkyl)isocoumarins is described. It is based on the synthesis of 2-(2-carboxybenzyl)furans followed by their acid-catalyzed recyclization to the target isocoumarins.