The Laccase-Catalyzed Domino Reaction between Catechols and Heterocyclic 1,3-Dicarbonyls and the Unambiguous Structure Elucidation of the Products by NMR Spectroscopy and X-ray Crystal Structure Analysis
作者:Szilvia Hajdok、Jürgen Conrad、Heiko Leutbecher、Sabine Strobel、Thomas Schleid、Uwe Beifuss
DOI:10.1021/jo9011915
日期:2009.10.2
thiocoumarins) using aerial oxygen as the oxidant delivers benzofuropyridinones, benzofuroquinolinones, and thiocoumestans in a simple fashion, highly regioselectively with yields ranging from 55 to 98%. With barbituric acid derivatives the exclusive formation of dispiropyrimidinone derivatives takes place. The unambiguous and complete structure elucidation of all reaction products has been achieved
邻苯二酚与杂环1,3-二羰基化合物(吡啶并酮,喹啉酮,硫代香豆素)之间的漆酶催化反应,使用空气中的氧气作为氧化剂,可以简单,高度区域选择性地生成苯并呋喃并吡啶酮,苯并呋喃喹啉酮和硫代双香豆素,产率为55%至98%。与巴比妥酸衍生物一起形成了双螺并嘧啶酮衍生物。通过NMR光谱方法(HSQMBC和能带选择的HMBC)以及X射线晶体结构分析已经实现了对所有反应产物的明确和完整的结构阐明。