Reviews and Accounts
ARKIVOC 2015 (i) 136-159
Cellulose sulfuric acid (CSA) and starch sulfuric acid (SSA) as solid and heterogeneous catalysts in green organic synthesis: recent advances Rajesh H. Vekariya and Hitesh D. Patel* Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad 380009, Gujarat, India E-mail: drhiteshpatel1@gmail.com DOI: http://dx.doi.org/10.3998/ark.5550190.p008.975 Abstract The use of heterogeneous solid acid catalysts is important to the development of sustainable chemical processes. To this end, cellulose sulfuric acid (CSA) and starch sulfuric acid (SSA) have been developed and used for a wide range of organic transformations, including the synthesis of pharmaceutically important heterocyclic compounds. These heterogeneous catalysts are easily recovered and reused several times without loss of their activity. In this review, we mainly summarize applications of these catalysts in synthetic organic chemistry. Keywords: Cellulose sulfuric acid (CSA), starch sulfuric acid (SSA), heterogeneous catalysts, solid acid catalysts, organic synthesis, selectivity, green synthesis
Table of Contents 1. Introduction 2. Cellulose Sulfuric Acid (CSA) 2.1. Various organic transformations catalyzed by CSA 3. Starch Sulfuric Acid (SSA) 3.1. Various organic transformations catalyzed by SSA 4. Conclusions 5. Acknowledgements 6. References
1. Introduction Synthetic organic chemistry generally involves the use of various solvents and catalysts, which may be toxic, hazardous, corrosive and inflammable. These chemical processes highly influence
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