Crude peroxidase from onion solid waste as a tool for organic synthesis. Part III: synthesis of tetracyclic heterocycles (coumestans and benzofuroquinolinones)
作者:Simona Angeleska、Panagiotis Kefalas、Anastasia Detsi
DOI:10.1016/j.tetlet.2013.02.081
日期:2013.5
In the present study the biocatalytic activity of a crude onion peroxidase extract on the reaction between catechol and heterocyclic 1,3-dicarbonyl compounds is investigated. The crude enzyme preparation promotes effectively the reaction between catechol and 4-hydroxycoumarin, 4-hydroxy-1-methyl-2-quinolinone and 2,4-quinolinediol to afford the corresponding coumestans and benzofuroquinolinones in
在本研究中,研究了粗洋葱过氧化物酶提取物对邻苯二酚和杂环1,3-二羰基化合物之间反应的生物催化活性。粗制酶制剂有效地促进了儿茶酚与4-羟基香豆素,4-羟基-1-甲基-2-喹啉酮和2,4-喹啉二醇之间的反应,以令人满意的产率提供了相应的香豆甾烷和苯并呋喃喹啉酮。该反应的产物在光谱上得到了充分表征,并且发现具有强大的抗氧化活性,如通过2,2-二苯基-1-吡啶并肼基(DPPH),三价铁还原抗氧化能力(FRAP)和鲁米诺诱导的化学发光测定所评估的。