Current Catalysis - Volume 5, Issue 3, 2016

Background: Specifically, this review includes: (i) a brief overview of basic structure of clay (tetrahedral and octahedral sheet); (ii) types of clays (anionic/ cationic) and their modified forms; (iii) properties of clays such as ion exchange, swelling, intercalation and cation-exchange, acidity; (iv) as well as overview of different clays like montmorillonite clay, pillard clay, organoclay and basic clay with their catalytic applications in v Read More

Background: Ceria (CeO2) is an important catalyst component and support/ carrier and high surface area ceria is extremely useful for increasing catalytic activity in several low temperature applications such as emissions control, water gas shift (WGS), CO oxidation, and VOC combustion/destruction. The highest surface areas reported in the literature using aqueous synthetic routes, in the absence of organic s Read More

Background: Epoxides are useful and important intermediates in pharmaceutical and agrochemical industries. In particular, the opening of epoxides with alcohols is an important transformation for the synthesis of β-alkoxy alcohols which are considered as valuable organic solvents, versatile synthons and intermediates. We have synthesized simple, highly efficient and environment benign catalyst and applied for the r Read More

Background: A novel one pot protocol has been developed to synthesize polyfunctionalized 4H-pyran derivatives directly from corresponding substituted aldehyde, malononitrile and β-keto ester using a recyclable polystyrene resin functionalized with a piperazine. The significant features of the present protocol are environmental acceptability, operational simplicity, shorter re-action time, high yields, and no chromatographic Read More

Background: Despite the great attempts to modify the methodology for the synthesis of α-aminonitriles, a vast majority is associated with a variety of drawback. Therefore, the development of an environmentally friendly, inexpensive and effective procedure is still in demand. In order to reach these purposes, we decided to utilize CeO2 nanoparticles as catalyst in the synthesis of α-aminonitriles. Methods: In the present work, a Read More

Background: Exploiting the twofold nature of ionic liquids as catalyst and reaction media, the synthesis of a library of 5H-benzo[a]phenothiazines has been reported. Firstly, we prepared zinc mercaptides of 2-aminobenzenethiols and 2,3-disubstituted 1,4-napthaquinones which undergo condensation in ionic liquid to generate 5H -benzo[a]phenothiazines. The ionic liquid used was [BMIM][[HSO4] which was recovered and Read More

Background: Cinnamaldehyde is a valuable raw material in food, perfumery, agrochemical and pharmaceutical industries. Initially, manganate and dichromate ions were used as catalysts for oxidation of cinnamyl alcohols to cinnamaldehyde. But there are several limitations with these methods. Therefore, research is needed to replace the existing method with one which is more practical and feasible for industries. Method: Supp Read More