γ-Fe2O3@SiO2@4-(sulfoamino)butanoic acid as a novel superparamagnetic nanocatalyst promoted green synthesis of 5-(aryl)-5H-spiro[diindeno[1,2-b:2′,1′-e]pyridine-11,3′-indoline]-2′,10,12-trione derivatives
作者:Hadi Mohammadi、Hamid Reza Shaterian
DOI:10.1007/s11164-018-3571-1
日期:2018.12
direct protocol for the pseudo four -component preparation of 5-(aryl)-5 H -spiro[diindeno[1,2- b :2′,1′- e ]pyridine-11,3′-indoline]-2′,10,12-trione derivatives via cascade condensation reaction of 1,3-indandione and isatins with various aromatic amine in the presence of the catalytic amount of γ-Fe2O3@SiO2@4-(sulfoamino)butanoic acid under green conditions in aqueous media. This procedure offers several
One-Pot, Pseudo Four-Component Synthesis of a Spiro[diindeno[1,2-<i>b</i>:2′,1′-<i>e</i>]pyridine-11,3′-indoline]-trione Library
作者:Ramin Ghahremanzadeh、Ghazaleh Imani Shakibaei、Somayeh Ahadi、Ayoob Bazgir
DOI:10.1021/cc900130a
日期:2010.1.11
A one-pot, pseudo four-component method for the efficient and simple synthesis of spiro[diindeno[1,2-b:2′,1′-e]pyridine-11,3′-indoline]-2′,10,12-trione derivatives in refluxing acetonitrile is reported. The features of this procedure are mild reaction conditions, high yields of products, and operational simplicity.
一种高效,简单合成螺[diindeno [1,2- b: 2',1'- e ]吡啶-11,3'-二氢吲哚] -2',10的一锅法伪四组分方法,据报道在回流的乙腈中有12-三酮衍生物。该程序的特点是反应条件温和,产物收率高,操作简便。
Grindstone chemistry: one-pot synthesis of spiro[diindenopyridine-indoline]triones and spiro[acenaphthylene-diindenopyridine]triones
作者:Ramin Ghahremanzadeh、Somayeh Ahadi、Ghazaleh Imani Shakibaei、Ayoob Bazgir
DOI:10.1016/j.tetlet.2009.11.041
日期:2010.1
A one-pot, pseudo four-component, and simple synthesis of spiro[diindenopyridine-indoline]triones and spiro[acenaphthylene-diiiidenopyridine]triones via the reaction of 1,3-indandione, aromatic amines and isatins or acenaphthylene-1,2-dione using a 'Grindstone Chemistry' method is reported. (C) 2009 Elsevier Ltd. All rights reserved.
Efficient Synthesis of Spiro[diindenopyridine-indoline]triones Catalyzed by PEG-OSO<sub>3</sub>H-H<sub>2</sub>O and [NMP]H<sub>2</sub>PO<sub>4</sub>
作者:Jayant Sindhu、Harjinder Singh、J. M. Khurana
DOI:10.1080/00397911.2014.906616
日期:2015.1.17
One-pot, three-component synthesis of spiro[diindenopyridine-indoline]triones has been reported via the reaction of 1,3-indandione, aromatic amines, and isatins with (PEG-OSO3H) as an efficient, polymeric acid surfactant-based catalyst in water and also in presence of acidic ionic liquid [NMP]H2PO4, which acts both as a medium and catalyst under conventional heating and ultrasonic irradiation. The reactions were complete in short reaction times with excellent yield of products. Surfactant-based PEG-OSO3H could be recycled and reused several times without any significant loss of activity. The compounds exhibit fluorescence in methanol with large Stokes shift.
Oxalic acid dihydrate and proline based low transition temperature mixture: An efficient synthesis of spiro [diindenopyridine-indoline] triones derivatives
作者:Dattatray R. Chandam、Abhijeet G. Mulik、Dayanand R. Patil、Ajinkya P. Patravale、Digambar R. Kumbhar、Madhukar B. Deshmukh
DOI:10.1016/j.molliq.2016.02.101
日期:2016.7
new facile approach has been developed for the synthesis of spiro [diindenopyridine-indoline] triones under the umbrella of green chemistry. The developed protocol is endowed with the use of low transition temperature mixture as a green reaction medium, operational simplicity, easy workup procedures, good to excellent product yields, and non-chromatographic purification procedure. Since indenone fused