Synthesis of novel heterocycles from 2-amino-3-cyanomethyl-sulfonyl-4,5-dimethylfuran
作者:Chad E. Stephens、J. Walter Sowell
DOI:10.1002/jhet.5570340324
日期:1997.5
The synthesis and selected reactions of the versatile heterocycle 2-amino-3-cyanomethylsulfonyl-4,5-dimethylfuran is reported. In particular, cyclization reaction of the aminofuran yielded a number of novel furo[3,2-b]thiazine 1,1-dioxides. Additionally, a novel tetracyclic system, namely a pyrrolo[2′,3′:5,6]-[1,4]thiazino[3,2-b]quinoline 4,4-dioxide, is prepared via an intramolecular triple-cyclization
报道了通用杂环2-氨基-3-氰基甲基磺酰基-4,5-二甲基呋喃的合成和选择的反应。特别是,氨基呋喃的环化反应产生了许多新颖的呋喃并[3,2 - b ]噻嗪1,1-二氧化物。另外,通过分子内三环化制备了新颖的四环体系,即吡咯并[2',3':5,6]-[1,4]噻嗪基[3,2 - b ]喹啉4,4-二氧化物。其中呋喃环以吡咯的形式打开和关闭。