Cellulose Sulfuric Acid: An Efficient Biodegradable and Recyclable Solid Acid Catalyst for the One-Pot Synthesis of 3,4-Dihydropyrimidine-2(1H)-ones

Biosupported cellulose sulfuric acid has been found to be an efficient solid acid catalyst for the one-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones. The advantages of this method are avoidance of harsh reaction conditions, ecofriendly chemistry, operational simplicity, high yield, and reusable catalyst.