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
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
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.
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。