Oxalic Acid Dihydrate: A Reusable and Cost-Effective Catalyst for the Synthesis of Bis(indolyl)methanes under Solvent-Free Conditions

Minoo      Dabiri; Mostafa      Baghbanzadeh; Seyedeh   C.   Azimi; Shaghayegh      Ahmadzadeh-Asl; Reza   R.   Ardestani

doi:10.2174/157017808785740516

Abstract

Oxalic acid as a solid organic acid catalyzed the synthesis of bis(indolyl)methanes by the reaction of indole derivatives and different carbonyl compounds. All the reactions were performed at ambient temperature and completely heterogeneous conditions and the products were obtained in high yields.

Keywords: Heterocycles, indole, oxalic acid, solvent-free

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Letters in Organic Chemistry

Title: Oxalic Acid Dihydrate: A Reusable and Cost-Effective Catalyst for the Synthesis of Bis(indolyl)methanes under Solvent-Free Conditions

Volume: 5 Issue: 6

Author(s): Minoo Dabiri, Mostafa Baghbanzadeh, Seyedeh C. Azimi, Shaghayegh Ahmadzadeh-Asl and Reza R. Ardestani

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Keywords: Heterocycles, indole, oxalic acid, solvent-free

Abstract: Oxalic acid as a solid organic acid catalyzed the synthesis of bis(indolyl)methanes by the reaction of indole derivatives and different carbonyl compounds. All the reactions were performed at ambient temperature and completely heterogeneous conditions and the products were obtained in high yields.

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Dabiri Minoo, Baghbanzadeh Mostafa, Azimi C. Seyedeh, Ahmadzadeh-Asl Shaghayegh and Ardestani R. Reza, Oxalic Acid Dihydrate: A Reusable and Cost-Effective Catalyst for the Synthesis of Bis(indolyl)methanes under Solvent-Free Conditions, Letters in Organic Chemistry 2008; 5 (6) . https://dx.doi.org/10.2174/157017808785740516