Rapid access to pyrido[1,2,5]triazepin-4-ones through intramolecular nucleophilic aromatic substitution
作者:Shujuan Jin、Olivier St-Jean、Sandra I. Baltatu、Vijayaratnam Santhakumar、Mirosław J. Tomaszewski
DOI:10.1016/j.tetlet.2011.12.132
日期:2012.3
Several 3-substituted pyrido[1,2,5]triazepin-4-ones and their benzo counterparts have been prepared in three steps from commercial starting materials. The key step involves SNAr-type intramolecular nucleophilic aromatic substitution of the appropriate hydrazone substrates.
从商业起始原料开始,通过三个步骤制备了几种3-取代的吡啶并[1,2,5]三氮杂-4-酮和它们的苯并对应物。关键步骤涉及适当N底物的S N Ar型分子内亲核芳族取代。