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 — Oak Academic Publishing
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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
Department of Chemistry, Sanghavi College of Engineering, Nashik, India
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Pacific Academy of Higher Education & Research University, Udaipur, India
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Department of Chemistry, Sanghavi College of Engineering, Nashik, India
1 Department of Chemistry, Sanghavi College of Engineering, Nashik, India
2 Pacific Academy of Higher Education & Research University, Udaipur, India
3 Department of Chemistry, Sanghavi College of Engineering, Nashik, India
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.
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