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Asian Journal of Nanosciences and Materials
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Volume Volume 2 (2019)
Volume Volume 1 (2018)
Sajjadifar, S., Mansouri, G., Miraninezhad, S. (2018). Silica supported-boron sulfonic acid: a versatile and reusable catalyst for synthesis of bis(indolyl)methane in solvent free and room temperature conditions. Asian Journal of Nanosciences and Materials, 1(Issue 1. pp. 1-51), 11-18. doi: 10.26655/ajnanomat.2018.1.2
Sami Sajjadifar; Ghobad Mansouri; Shefa Miraninezhad. "Silica supported-boron sulfonic acid: a versatile and reusable catalyst for synthesis of bis(indolyl)methane in solvent free and room temperature conditions". Asian Journal of Nanosciences and Materials, 1, Issue 1. pp. 1-51, 2018, 11-18. doi: 10.26655/ajnanomat.2018.1.2
Sajjadifar, S., Mansouri, G., Miraninezhad, S. (2018). 'Silica supported-boron sulfonic acid: a versatile and reusable catalyst for synthesis of bis(indolyl)methane in solvent free and room temperature conditions', Asian Journal of Nanosciences and Materials, 1(Issue 1. pp. 1-51), pp. 11-18. doi: 10.26655/ajnanomat.2018.1.2
Sajjadifar, S., Mansouri, G., Miraninezhad, S. Silica supported-boron sulfonic acid: a versatile and reusable catalyst for synthesis of bis(indolyl)methane in solvent free and room temperature conditions. Asian Journal of Nanosciences and Materials, 2018; 1(Issue 1. pp. 1-51): 11-18. doi: 10.26655/ajnanomat.2018.1.2

Silica supported-boron sulfonic acid: a versatile and reusable catalyst for synthesis of bis(indolyl)methane in solvent free and room temperature conditions

Article 2, Volume 1, Issue 1. pp. 1-51, Winter 2018, Page 11-18  XML PDF (663.8 K)
Document Type: Original Article
DOI: 10.26655/ajnanomat.2018.1.2
Authors
Sami Sajjadifar email orcid ; Ghobad Mansouriorcid ; Shefa Miraninezhad
Department of Chemistry, Payame Noor University, PO BOX 19395-4697 Tehran, Iran
Receive Date: 14 January 2018,  Revise Date: 28 February 2018,  Accept Date: 28 February 2018 
Abstract
Silica supported-boron sulfonic acid (SBSA) was used as a cheap and mild bronsted acidic in the reaction of indole with aldehydes to afford the corresponding bis(indolyl)methanesin in solvent free grinding and room temperature. The catalyst is also effective in the reaction in good yields. This methodology offers several advantages, such as good yields, reusability of catalyst, short reaction times, simple procedure, and mild conditions. The catalyst can be recovered and reused without loss of activity. The work-up of the reaction consists of a simple filtration, followed by concentration of the crude product and purification.

Graphical Abstract

Silica supported-boron sulfonic acid: a versatile and reusable catalyst for synthesis of bis(indolyl)methane in solvent free and room temperature conditions
Keywords
Indole; Bis(indolyl)methane; Boron Sulfonic Acid; Aldehyde; Synthesis
Main Subjects
Organic Chemistry
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