An Expeditious and Solvent-Free Synthesis of Substituted Pyrroles Using Sulfated Anatase-Titania as a Solid Acid Catalyst

Sulfated anatase-titania (TiO2–SO42−) has been used as a solid acid catalyst for the synthesis of substituted pyrroles from γ-diketone and aromatic/aliphatic (acyclic and cyclic) primary amines by ...

[1]  M. Swaminathan,et al.  An expeditious and solvent free synthesis of azine derivatives using sulfated anatase–titania as a novel solid acid catalyst , 2011 .

[2]  M. Swaminathan,et al.  A Recyclable Solid Acid Catalyst Sulfated Titania for Easy Synthesis of Quinoxaline and Dipyridophenazine Derivatives under Microwave Irradiation , 2011 .

[3]  A. Sivakumar,et al.  Ultrasound-assisted synthesis of 2,5-dimethyl-N-substituted pyrroles catalyzed by uranyl nitrate hexahydrate. , 2011, Ultrasonics sonochemistry.

[4]  M. Swaminathan,et al.  TiO2–SO42− as a novel solid acid catalyst for highly efficient, solvent free and easy synthesis of chalcones under microwave irradiation , 2011 .

[5]  M. Swaminathan,et al.  A convenient method for the N-formylation of amines at room temperature using TiO2-P25 or sulfated titania , 2011 .

[6]  M. Swaminathan,et al.  An efficient protocol for the green synthesis of quinoxaline and dipyridophenazine derivatives at room temperature using sulfated titania , 2010 .

[7]  H. Veisi Silica sulfuric acid (SSA) as a solid acid heterogeneous catalyst for one-pot synthesis of substituted pyrroles under solvent-free conditions at room temperature , 2010 .

[8]  F. Bamoharram,et al.  Wells-Dawson Type Heteropolyacid Catalyzed Synthesis of Quinoxaline Derivatives at Room Temperature , 2007 .

[9]  W. Su,et al.  An approach to the Paal–Knorr pyrroles synthesis catalyzed by Sc(OTf)3 under solvent-free conditions , 2006 .

[10]  G. Colón,et al.  Structural and surface approach to the enhanced photocatalytic activity of sulfated TiO2 photocatalyst , 2006 .

[11]  S. Sugunan,et al.  Sulfated titania mediated regioselective nitration of phenol in solid state , 2005 .

[12]  S. Dasgupta,et al.  A straightforward highly efficient Paal–Knorr synthesis of pyrroles , 2005 .

[13]  H. W. Scheeren,et al.  Microwave mediated facile one-pot synthesis of polyarylpyrroles from but-2-ene- and but-2-yne-1,4-diones , 2004 .

[14]  B. Banik,et al.  Simple synthesis of substituted pyrroles. , 2004, The Journal of organic chemistry.

[15]  M. Curini,et al.  Layered zirconium phosphate and phosphonate as heterogeneous catalyst in the preparation of pyrroles , 2003 .

[16]  S. K. Samantaray,et al.  Effect of anions on the textural and catalytic activity of titania , 2003 .

[17]  Qiang Xu,et al.  Surface characterization of sulfate, molybdate, and tungstate promoted TiO2-ZrO2 solid acid catalysts by XPS and other techniques , 2002 .

[18]  K. McNeill,et al.  One-step synthesis of 3,5-disubstituted-2-pyridylpyrroles from the condensation of 1,3-diones and 2-(aminomethyl)pyridine. , 2002, Organic letters.

[19]  T. Danks Microwave assisted synthesis of pyrroles , 1999 .

[20]  M. Periasamy,et al.  Conversion of Aryl Methyl Ketimines to 2,5-Diarylpyrroles Using TiCl4/Et3N , 1999 .

[21]  K. Arata Preparation of superacids by metal oxides for reactions of butanes and pentanes , 1996 .

[22]  A. Fürstner,et al.  A New, Titanium-Mediated Approach to Pyrroles: First Synthesis of Lukianol A and Lamellarin 0 Dimethyl Ether , 1995 .

[23]  R. A. Rajadhyaksha,et al.  Alkylation of o-xylene with styrene by superacid catalysts , 1987 .

[24]  T. Jin,et al.  Mechanism of acidity generation on sulfur-promoted metal oxides , 1986 .

[25]  C. Tripp,et al.  The structure and stability of sulfated alumina and titania , 1986 .

[26]  D. Luna,et al.  Alkali-promoted AlPO4 catalysis , 1983 .

[27]  G. G. Kleinspehn A Novel Route to Certain 2-Pyrrolecarboxylic Esters and Nitriles1,2 , 1955 .