One-pot domino reactions for synthesis of heterocyclic[3.3.3]propellanes and spiro[cyclopenta[b]pyridine-4,2′-indenes]
摘要:
An efficient synthetic procedure for the functionalized heterocyclic[3.3.3]propellanes was successfully developed by one-pot domino reaction of ninhydrin, malononitrile with 3-arylamino-2-cyclohexenones and their 5,5-dimethyl derivatives in the presence of triethylamine in ethanol at room temperature. On the other hand the similar one-pot reaction containing 3-arylamino-2-cyclopentenones resulted in the functionalized spiro[cyclopenta[b]pyridine-4,2'-indenes] in moderate yields. (C) 2013 Elsevier Ltd. All rights reserved.
One-Pot Synthesis of 3-Functionalized 4-Hydroxycoumarin under Catalyst-Free Conditions
作者:Yang Gao、Guo-Ning Zhang、Juxian Wang、Xiaoguang Bai、Yiliang Li、Yucheng Wang
DOI:10.3390/molecules23010235
日期:——
A concise and efficient one-pot synthesis of 3-functionalized 4-hydroxycoumarin derivatives via a three-component domino reaction of 4-hydroxycoumarin, phenylglyoxal and 3-arylaminocyclopent-2-enone or 4-arylaminofuran-2(5H)-oneunder catalyst-free and microwaveirradiationconditions is described. This synthesis involves a group-assisted purification process, which avoids traditional recrystallization
An Efficient Synthesis of Polyfunctionalized Indole Derivatives via Three-component Domino Reaction Catalyzed by<i>L</i>-Proline
作者:Lei Fu、Wei Lin、Zhi-Bin Huang、Da-Qing Shi
DOI:10.1002/jhet.2133
日期:2015.7
A facile and efficient one‐pot procedure for the preparation of indeno[1,2‐b]indole derivatives viathree‐component domino reaction of ninhydrin, enaminones, and malononitrile catalyzed by L‐proline is described. In this reaction, two rings and four bonds were formed by one‐pot.
描述了一种通过L-脯氨酸催化的茚三酮,烯胺酮和丙二腈的三组分多米诺反应,快速简便地制备茚并[1,2- b ]吲哚衍生物的方法。在该反应中,一锅形成两个环和四个键。
FeCl3 catalysed multicomponent divergent synthesis of a library of indeno-fused heterocycles
作者:Sunil Rana、Mike Brown、Chhanda Mukhopadhyay
DOI:10.1039/c2ra23332k
日期:——
A simple, straightforward and versatile multicomponent synthetic protocol for indeno-fused heterocycles, namely diindeno[1,2-b:2′,1′-e]pyridine, indeno[1,2-b]quinoline and indeno[1,2-b]cyclopenta[e]pyridine derivatives, has been developed. The strategy involves the one pot three component reaction of enaminone, dialkyl but-2-ynedioate and 1,3-indanedione catalysed by FeCl3 in acetonitrile under reflux