Current Catalysis - Volume 4, Issue 2, 2015

The importance of cytochrome P450 enzymes (P450) and their contribution to the majority of xenobiotic phase I metabolism is well established; as such, P450 is the only family of enzymes required by the FDA to be fully evaluated for any interaction(s) with all new chemical entities. The traditional methods used to screen potential therapeutics, generally involving biological systems, present numerous intrinsic issues that Read More

The present work deals with the characterization and comparison of ceramic foam (dimension 40×40×15mm, 30 pores per inch) supported mesoporous alumina(prepared by the surface hydrolysis of 99% Al metal plate as well as by hydrothermal synthesis of Al(NO3)3.9H2O using pluronic F-127 as structure directing agent), and H-ZSM-5 for the methylation of toluene reaction. The characterization of the catalyst w Read More

The synthesis and characterization of a novel aminophenyl benzimidazole Pd (II) complex is reported. The complex proved as an efficient catalyst for the Sonogashira crosscoupling reaction of ten different aryl bromides with trimethylsilylethyne to yield a wide range of aryl trimethylsilylethynes. The reaction involves use of the novel complex and triethylamine

Ring opening of various epoxides with different alcohols was studied at room temperature using methanolic solution of trifluoromethane sulphonic acid which in situ generates methyloxonium triflate. The methyloxonium trifalte (0.0625 mol%) was found to be an efficient and selective catalyst for the reaction giving excellent conversions of epoxide/ yields of product (81–>99%) under optimized reaction condition. The turnover n Read More

The effect of three different zeolites: ZSM-5, zeolite-β and zeolite-Y on 1-(1- propylsulfonic)-3-methylimidazolium chloride catalyzed one-pot conversion of cellulose to ethyl levulinate and levulinic acid in 40 % (v/v) aq. ethanol was studied by measuring ethyl levulinate, levulinic acid and 5-hydroxymethylfurfural yields with and without zeolites. The zeolite type ZSM-5 as a co-catalyst produced the highest enhancement in yie Read More