作者:Achim Porzelle、Michael D. Woodrow、Nicholas C. O. Tomkinson
DOI:10.1002/ejoc.200800672
日期:2008.10
The rearrangement of a series of N,O-difunctionalized N-arylhydroxylamines to generate protected 2-aminophenols has been investigated. N-Boc-N-aryl-O-acylhydroxylamines are stable, isolable compds. which rearrange smoothly at temps. between 110 and 140°C. The corresponding N-Boc-N-aryl-O-sulfonylhydroxylamines were not isolated and rearrange to 1,2-difunctionalized aminophenols at room temp. in excellent
已经研究了一系列 N,O-双官能化 N-芳基羟胺的重排以生成受保护的 2-氨基苯酚。N-Boc-N-芳基-O-酰基羟胺是稳定的、可分离的化合物。在临时情况下顺利重新排列。在 110 到 140°C 之间。相应的 N-Boc-N-芳基-O-磺酰基羟胺在室温下未分离并重排为 1,2-双官能化氨基酚。以优异的产量。标准下N-或O-取代基的脱保护。条件允许对苯胺或苯酚官能团进行进一步的合成操作。