陳焜銘吳育丞Wu, Yu-Chen2020-12-142019-08-182020-12-142019http://etds.lib.ntnu.edu.tw/cgi-bin/gs32/gsweb.cgi?o=dstdcdr&s=id=%22G060642059S%22.&http://rportal.lib.ntnu.edu.tw:80/handle/20.500.12235/111105近幾年來，已經發現具有四氫呋喃苯并吡喃架構的天然物，甚至有些天然物擁有生物活性。目前探討合成此類架構的文獻相對稀少，本文提供新的合成途徑，藉由有機鹼三乙基胺，促進具有多親電位子的硝基丙烯基醋酸酯，與多親核位子的1-(2’-羥基苯基)丁烷-1,3-二酮，在低溫的條件下，進行高效率的連鎖反應Michael/acetalization/oxa-Michael反應，合成三環並聯線性的外消旋多取代四氫呋喃苯并吡喃，其架構具有四個連續的立體中心，包含兩個四級碳立體中心，產率可達62%。在反應選擇性方面，多取代四氫呋喃苯并吡喃與多取代呋喃比例為5:1-6:1。不對稱合成高純光學純度之呋喃苯并吡喃產物，後續在研究探討。In recent years, the tetrahydrofurano benzopyrans had been found from nature, some of which were bioactive. There was little literature on synthesis of these scaffolds. A new and convenient method for triethyl amine to promote effective domino reaction (Michael/acetalization/oxa-Michael reaction) of electrophilic nitroallylic acetate and nucleophilic 1-(2’-hydroxyphenyl)butane-1,3-dione. It was carried out under low temperature to synthesize racemic multi-substituted tetrahydrofurano benzopyrans bearing consecutive four stereogenic centers in moderate yield. And chemoselectivities was good (tetrahydrofurano benzopyrans : furan = 5:1-6:1). However, our efforts will focus on asymmetric synthesis of product in the future.有機連鎖反應丙烯基醋酸酯四氫呋喃苯并吡喃domino reactionnitroallylic acetatetetrahydrofurano benzopyrans