Synfacts, Table of Contents Synfacts 2013; 9(12): 1357DOI: 10.1055/s-0033-1340243 Polymer-Supported Synthesis © Georg Thieme Verlag Stuttgart · New York Synthesis of Tetrasubstituted Pyrroles with H2WO4/SiO2 Contributor(s): Yasuhiro Uozumi , Aya Tazawa Recommend Article Abstract Buy Article Key words Key wordsfour-component reaction - tetrasubstituted pyrroles - tungstic acid - silica support Full Text