Abstract

The main intention of this review is to summarize, some of the recent advances in a sulfonic acid-functionalized organic/
inorganic templates, such as melamine tri sulfonic acid, β-cyclodextrin sulfonic acid, and cellulose sulfonic acid, are belongs to
sulfonated organic templates and hybrid templates; on the other hand, the sulfonated inorganic acids are phospho sulfonic acid,
boron sulfonic acid, and tungsto sulfonic acid. All these sulfonated templates are most stable, recyclable, heterogeneous nature,
and bio-degradable polymeric catalysts in organic synthesis. In this review, preparation, and application of sulfonated templates
in organic synthesis are investigated.