Starch Sulfuric Acid: an Alternative, Eco-Friendly Catalyst for Biginelli Reaction

An Alternative Eco-Friendly Avenue for Castor Oil Biodiesel: Use of Solid Supported Acidic Salt Catalyst

Laccases for Denim Bleaching: An Eco-Friendly Alternative

Laccases have received much attention of researchers in last decades due to their ability to oxidise both phenolic and non-phenolic lignin-related compounds as well as highly recalcitrant environmental pollutants which makes them very useful for their application to several biotechnological processes such as those from the textile industry. In this regard, laccases are used for denim bleaching ...

Modified Biginelli condensation by molybdate sulfuric acid as a powerful and reusable catalyst

Molybdate sulfuric acid (MSA) has been prepared and used as catalyst for the Biginelli synthesis of some quinazolinones/thiones under solvent-free conditions. The catalyst loading is low and it shows recyclability. This method has advantages such as avoidance of the organic solvents, high yield of pure products, short reaction times and operational simplicity.

A green and eco-friendly method for the synthesis of xanthene derivatives using cellulose sulfuric acid under solvent-free conditions

A green and convenient method for the synthesis of 14-aryl-14H-dibenzo[a,i]xanthene-8,13-diones and spiro[dibenzo[a,i]-xanthene-14,3'-indoline]-2',8,13-triones in the presence of a catalytic amount of cellulose sulfuric acid (CSA) as an efficient biopolymer-based catalyst under solvent-free conditions at 100 °C is described. The condensation reactions of β-naphtol, 2-hydroxynaphthalene-1,4-dion...

Modified Biginelli condensation by molybdate sulfuric acid as a powerful and reusable catalyst

Molybdate sulfuric acid (MSA) has been prepared and used as catalyst for the Biginelli synthesis of some quinazolinones/thiones under solvent-free conditions. The catalyst loading is low and it shows recyclability. This method has advantages such as avoidance of the organic solvents, high yield of pure products, short reaction times and operational simplicity.