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Application of Sulfonic Acid Functionalized SBA-15 as a New Nanoporous Acid Catalyst in the Green One-Pot Synthesis of Spirooxindole-4 H -pyrans

✍ Scribed by Lashgari, Negar; Mohammadi Ziarani, Ghodsi; Badiei, Alireza; Zarezadeh-Mehrizi, Mansoureh


Book ID
121730508
Publisher
Journal of Heterocyclic Chemistry
Year
2014
Tongue
English
Weight
577 KB
Volume
51
Category
Article
ISSN
0022-152X

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## Abstract Silica phenyl sulfonic acid (SPSA) was prepared and effectively used in the one‐pot synthesis of 2‐aryl‐1‐arylmethyl‐1H‐1,3‐benzimidazoles from __o__‐phenylenediamine with aldehydes in water in the presence of tetrabutyl ammonium bromide with good to high yield. Also, SPSA was used as a