Efficient Microwave-assisted One-pot Synthesis of Novel Spironaphthopyrano-one Derivatives
作者:G. Meshram、P. Wagh、V. Amratlal、S. Deshpande
DOI:10.1002/jhet.2274
日期:2015.11
Rapid and efficient one‐pot three‐component synthesis of new spironaphthopyrano‐one derivatives by cyclocondensation reaction in aqueous media is achieved undermicrowaveirradiationconditions. This protocol has the advantages of higher yield, lower cost, reduced time, environmental impact, and convenient procedure.
Brunauer-Emmett-Teller (BET) measurements, and potentiometric titration techniques. The reactivity of the prepared nanoparticles was investigated in the synthesis of spiro[benzochromeno[2,3-d]pyrimidin-indolines] through the one-potthree-component condensation of different naphthols, isatin derivatives, and barbituric acids in the in refluxing ethanol successfully. The recovery and reusability of the
摘要 本文通过一种简单的方法将升华的AlCl 3嵌入到纳米二氧化硅-Fe 3 O 4核上,获得了新型AlCl 3 @nano Fe 3 O 4 -SiO 2 。首次采用纳米结构。新合成的固体已通过傅里叶变换红外光谱 (FT-IR)、场发射扫描电子显微镜 (FESEM)、能量色散 X 射线光谱 (EDAX)、振动样品磁力计 (VSM)、透射电子显微镜 (TEM) 进行了表征、X 射线衍射分析 (XRD)、Brunauer-Emmett-Teller (BET) 测量和电位滴定技术。研究了制备的纳米粒子在螺[苯并色烯[2,3- d ]合成中的反应性]嘧啶-二氢吲哚]通过不同的萘酚、靛红衍生物和巴比妥酸在回流乙醇中的一锅三组分缩合成功。纳米结构的回收率和可重复使用性也在 4 次运行中进行了检查,没有活性损失。
A green one-pot synthesis of spironaphthopyrano[1,2-b]indeno-7,3′-indolines
Abstract For the first time, spironaphthopyrano[1,2- b ]indeno-7,3′-indolines were prepared by cyclo-condensation of 1,3-indandione, isatin, and 2-naphthol under solvent-free and catalyst-free conditions. This procedure is not only environmentally benign but is also a simple, one-pot, three-component procedure with the advantages of easy work-up and mild reaction conditions. The same reaction was investigated
摘要 首次在无溶剂和无催化剂的条件下,通过环缩合1,3-茚满二酮,靛红和2-萘酚制备了螺萘并吡喃并[1,2 - b ]茚并-7,3'-二氢吲哚。 。该方法不仅对环境无害,而且是一种简单的,一锅,三组分的方法,具有易于后处理和温和的反应条件的优点。用其他β-二酮代替1,3-茚满二酮研究了相同的反应,并报道了结果。筛选合成的化合物的抗微生物活性。 图形概要
Abstractmagnified image A clean, one‐pot and three‐component synthesis of new spironaphthopyrano[2,3‐d]pyrimidine‐5,3′‐indoline derivatives by cyclo‐condensation reaction of isatins, 2‐naphthol, and barbituric acids in aqueous media is reported. J. Heterocyclic Chem., (2010).