通过芳族醛与环戊烯的顺序反应合成了一系列取代的吲哚 叠氮基乙酸乙酯 在......的存在下 乙醇钠形成相应的乙基α-叠氮基-β-芳基丙烯酸乙酯(Knoevenagel法),然后进行溶剂介导的热分解(Hemetsberger法)。使用牺牲亲电试剂时,α-叠氮基-β-芳基丙烯酸乙酯的分离收率显着提高三氟乙酸乙酯。对α-叠氮基-β-芳基丙烯酸乙酯的1 H NMR和1 H- 13 C NMR耦合分析表明,该缩合反应具有立体特异性,只能检测到Z异构体。溶剂介导的间位取代的乙基α-叠氮基-β-芳基丙烯酸酯的热处理导致5位和7位取代的吲哚的形成,其中5位区域异构体比7位区域异构体略受青睐。(2 Z,2 Z ')-二乙基3,3'-(1,3-亚苯基)双(2-叠氮基丙烯酸酯)和(2 Z,2 Z ')-二乙基3,3'-(1的相似热处理,4-亚苯基)双(2-叠氮基丙烯酸酯)专门生产吡咯并吲哚,1,5-二氢吡咯并[2
pyrrole formation by the reaction of vinylazides with 1,3-dicarbonyl compounds via the 1,2-addition of 1,3-dicarbonyl compounds to 2H-azirine intermediates generated in situ from vinylazides; (ii) the Cu(II)-catalyzed synthesis of pyrroles from alpha-ethoxycarbonyl vinylazides and ethyl acetoacetate through the 1,4-addition reaction of the acetoacetate to the vinylazides. By applying these two methods
a. Jose, Journal of the Chemical Society. Perkin transactions I, 1990, p. 1727 - 1731
作者:a. Jose
DOI:——
日期:——
Design, synthesis and aromatase inhibitory activities of novel indole-imidazole derivatives
作者:Rui Wang、Hong-Fan Shi、Jing-Feng Zhao、Yan-Ping He、Hong-Bin Zhang、Jian-Ping Liu
DOI:10.1016/j.bmcl.2013.01.045
日期:2013.3
A series of novel indole-imidazole derivatives have been prepared and evaluated in vitro on the aromatase inhibitory activities. The results suggested that proton or a small electron-withdrawing group at para-position of the phenyl ring would enhance the inhibitory activities and any bulky group should be avoided in order to keep a relative small volume for this kind of molecules. (C) 2013 Elsevier Ltd. All rights reserved.
Synthesis of 5-arylidene-3-(pyridin-4-yl)-2-thio-imidazolidinone derivatives with the end of flexible chain modified with aryl groups under microwave