Synthesis of Bis(indolyl)methanes Using Recyclable PEG-Supported Sulfonic Acid as Catalyst

An operationally simple, efficient and environmentally benign synthetic method to bis(indolyl)methanes has been developed in good yields (80-96%) by electrophilic substitution reactions of indole with aldehydes or ketones in methanol in the presence of 5 mol% of poly (ethylene-glycol) (PEG) supporte...

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Veröffentlicht in:	Catalysis letters 2009-03, Vol.128 (3-4), p.418-422
Hauptverfasser:	Sheng, Shou-Ri, Wang, Qiu-Ying, Ding, Yan, Liu, Xiao-Ling, Cai, Ming-Zhong
Format:	Artikel
Sprache:	eng
Schlagworte:	Aldehydes Catalysis Catalysts Chemistry Chemistry and Materials Science Exact sciences and technology General and physical chemistry Industrial Chemistry/Chemical Engineering Ketones Methanol Organometallic Chemistry Physical Chemistry Polyethylene glycol Substitution reactions Sulfonic acid Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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