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One‐pot Green Synthesis of Pyrrole Derivatives Catalyzed by Nano Sulfated Zirconia as a Solid Acid Catalyst
Author(s) -
Teimouri Abbas,
Chermahini Alireza Najafi
Publication year - 2012
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201100143
Subject(s) - chemistry , catalysis , cubic zirconia , reusability , solid acid , condensation , nano , sulfation , carbon 13 nmr , one pot synthesis , condensation reaction , proton nmr , characterization (materials science) , organic chemistry , combinatorial chemistry , chemical engineering , nanotechnology , ceramic , biochemistry , physics , software , computer science , engineering , thermodynamics , programming language , materials science
A new and efficient method for the preparation of N ‐substituted pyrroles from one‐pot Paal‐Knorr condensation has been accomplished using nano‐crystalline sulfated zirconia (SZ) as the catalyst in ethanol at moderate temperature. This new protocol has the advantages of easy availability, stability, reusability and eco‐friendliness of the catalyst, high to excellent yields, simple experimental and work‐up procedure. The synthesized compounds were confirmed through spectral characterization using IR, 1 H NMR, 13 C NMR and mass spectra.