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
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
New tandem reductive rearrangement of 3-furylphthalides into 3-(3-oxoalkyl)isocoumarins
作者:Pavel M. Shpuntov、Vitaly A. Shcherbinin、Vladimir T. Abaev、Alexander V. Butin
DOI:10.1016/j.tetlet.2016.02.072
日期:2016.3
A new tandem transformation of 3-furylphthalides into 3-(3-oxoalkyl)isocoumarins mediated by a red phosphorus/iodine reagent system has been developed. This allows the straightforward preparation of functionalized isocoumarins in good yields using readily available substrates and reagents. The obtained products can be employed in the synthesis of natural 3-butylisocoumarins with antifungal properties