n-Dodecylbenzene Sulfonic Acid (DBSA) as a Novel Brønsted Acid Catalyst for the Synthesis of Bis(indolyl)methanes and Bis(4-hydroxycoumarin-3-yl)methanes in Water - Green and Sustainable Chemistry

GSC > Vol.3 No.2, May 2013

Volume 3, Issue 2 (May 2013)

ISSN Print: 2160-6951 ISSN Online: 2160-696X

Google-based Impact Factor: 1.8 Citations

n-Dodecylbenzene Sulfonic Acid (DBSA) as a Novel Brønsted Acid Catalyst for the Synthesis of Bis(indolyl)methanes and Bis(4-hydroxycoumarin-3-yl)methanes in Water ()

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DOI: 10.4236/gsc.2013.32010 5,315 Downloads 8,645 Views Citations

Author(s)

Balu Pawar, Vinod Shinde, Atul Chaskar

Affiliation(s)

Department of Chemistry, Sanghavi College of Engineering, Nashik, India.
Pacific Academy of Higher Education & Research University, Udaipur, India.

ABSTRACT

n-Dodecylbenzene sulfonic acid (DBSA) as a novel, biodegradable, and efficient Br?nsted acid catalyst used for the reaction of indoles/4-hydroxy coumarin with aldehydes to obtain a bis(indolyl)methanes/bis(4-hydroxycoumarin-3-yl)methanes, respectively. The catalyst exhibited remarkable activity, and tolerated a wide variety of functional groups providing the desired bis(indolyl)methanes and bis(4-hydroxycoumarin-3-yl)methanes in good to excellent yield (70%-96%) in water.

KEYWORDS

n-Dodecylbenzene Sulfonic Acid (DBSA); Indole; Aldehyde; Bis(indolyl)methane; Bis(4-hydroxycoumarin-3-yl)methanes

Share and Cite:

B. Pawar, V. Shinde and A. Chaskar, "n-Dodecylbenzene Sulfonic Acid (DBSA) as a Novel Brønsted Acid Catalyst for the Synthesis of Bis(indolyl)methanes and Bis(4-hydroxycoumarin-3-yl)methanes in Water," Green and Sustainable Chemistry, Vol. 3 No. 2, 2013, pp. 56-60. doi: 10.4236/gsc.2013.32010.

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