An Efficient Synthesis of Bis (Indolyl) Methane's Under Solvent Free Condition Using Silica Supported Polyphosphoric Acid (PPA- SiO2) as Recyclable Catalyst
Published:
2016
Author(s): Sugat Kriti, Deepak Kumar, Naveen Kumar Mogha, Virender Singh, Dhanraj T. Masaram
DOI:
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Abstract
Silica supported poly-phosphoric acid (PPA-SiO 2 ) has been utilized as an efficient and an environmentally friendly heterogeneous, reusable catalyst for the synthesis of bis(indolyl)methanes under solvent free condition. The significances of this protocol are mild reaction condition, excellent yield and simple work up procedure.
Keywords: Bis (indolyl) Methanes, Polyphosphoric Acid, Silica, Solvent Free, Recyclable Catalyst