<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">A catalytic synthesis of calix[4]pyrroles and <italic>N</italic>-confused calix[4]pyrroles by reaction of dialkyl or cycloalkyl ketones with pyrrole was performed using Preyssler, sodium30-tungsto pentaphosphate, [NaP5W30O110]14- and Wells-Dawson heteropolyacids as acidic catalysts. The process occurred under mild, eco-friendly and environmental friendly conditions and as a reusable, green catalyst at room temperature for 6 hours. The results showed that the yield for this synthesis is excellent with the use of Preyssler and Wells-Dawson type tungstophosphoric heteropolyacid, H6[P2W18O62], catalysts. The synthesis reaction of calix[4]pyrroles and <italic>N</italic>-confused calix[4]pyrroles was developed using different solvents and the best yields were obtained in chloroform.</abstract>

A catalytic synthesis of calix[4]pyrroles and N-confused calix[4]pyrroles by reaction of dialkyl or cycloalkyl ketones with pyrrole was performed using Preyssler, sodium30-tungsto pentaphosphate, [NaP5W30O110]14- and Wells-Dawson heteropolyacids as acidic catalysts. The process occurred under mild, eco-friendly and environmental friendly conditions and as a reusable, green catalyst at room temperature for 6 hours. The results showed that the yield for this synthesis is excellent with the use of Preyssler and Wells-Dawson type tungstophosphoric heteropolyacid, H6[P2W18O62], catalysts. The synthesis reaction of calix[4]pyrroles and N-confused calix[4]pyrroles was developed using different solvents and the best yields were obtained in chloroform.

Novel catalytic method synthesis of calix[4]pyrroles using Preyssler and Wells-Dawson heteropolyacids

Department of Chemistry, Islamic Azad University, Mashhad, IRAN

Agricultural Researches and Services Center, Mashhad, IRAN

Cluster for Molecular Chemistry, Department of Organic Chemistry, Radboud University Nijmegen, The Netherlands

Polish Journal of Chemical Technology

A catalytic synthesis of calix[4]pyrroles and N-confused calix[4]pyrroles by reaction of dialkyl or cycloalkyl ketones with pyrrole was performed using...

Novel catalytic method synthesis of calix[4]pyrroles using Preyssler and Wells-Dawson heteropolyacids

Published Online: Jun 16, 2011

Page range: 70 - 73

DOI: https://doi.org/10.2478/v10026-011-0027-4

Keywords
Calix[4]pyrrole, Heteropolyacid, Preyssler, Wells-Dawson, Catalysis, -confused calix[4]pyrrole

This content is open access.

Novel catalytic method synthesis of calix[4]pyrroles using Preyssler and Wells-Dawson heteropolyacids

Published Online: Jun 16, 2011

Page range: 70 - 73

DOI: https://doi.org/10.2478/v10026-011-0027-4

KeywordsCalix[4]pyrrole, Heteropolyacid, Preyssler, Wells-Dawson, Catalysis, -confused calix[4]pyrrole

This content is open access.

Keywords
Calix[4]pyrrole, Heteropolyacid, Preyssler, Wells-Dawson, Catalysis, -confused calix[4]pyrrole