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An Efficient Synthesis of Bis (Indolyl) Methanes Under Solvent Free Condition Using Silica Supported Polyphosphoric Acid (PPA-SiO2) as Recyclable Catalyst

Journal of Scientific and Technical Research

Volume 6 Issue 1

Published: 2016
Author(s) Name: Sugat Kirti, Deepak Kumar, Navin Kumar Mogha, Virender Singh, Dhanraj T. Masram | Author(s) Affiliation:
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Abstract

Silica supported poly-phosphoric acid (PPA-SiO2) 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

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