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Title: Eco-friendly heteropoly acid supported on natural clay for the synthesis of calix[4]resorcinarene derivatives
Authors: Selvakumar, Karuppaiah
Kumaresan, Murugan
Sami, Ponnusamy
Swaminathan, Meenakshisundaram
Keywords: Heteropoly acid;Activated Natural Clay;Calix[4]-resorcinarene;Green synthesis;Heterogeneous reaction
Issue Date: Mar-2020
Publisher: NISCAIR-CSIR, India
Abstract: The catalytic activity of green catalyst heteropoly-11-tungsto-1-vanadophosphoric acid, H4[PVW11O40] (HPV) supported on activated natural clay (HPVAC)  has been tested towards the synthesis of calix[4]resorcinarene under solvent-free condition. It is a one-pot multi-component condensation reaction of four moles of aromatic aldehydes with four moles of resorcinol. The advantages of the protocol, solvent-free heterogeneous reaction condition, simple workup procedure, short reaction time, high yield of products and reusability of the catalyst make this method to declare as green approach for synthesis of calix[4]resorcinarene.
Page(s): 185-191
ISSN: 0975-0991 (Online); 0971-457X (Print)
Appears in Collections:IJCT Vol.27(2) [March 2020]

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