the aerobic oxidation of alcohols was efficiently completed in high conversion and selectivity using cu3/2[pmo12o40]/sio2 as catalyst under mild reaction condition. this reaction provides a new environmentally friendly rout to the conversion of alcoholic function to carbonyl groups.

some n¬-acyl-n'-aryl thiourea derivatives 4(a-f) have been prepared by the reaction of acyl halides ammonium thiocyanate and aryl amines. the structures of synthesized compounds have been characterized by ir, 1hnmr spectral studies. the synthesized compounds 5(a-f) have been screened for antibacterial activity. the effect of the structure of the investigated compounds on the antibacterial ...

Photochemical processing of aqueous atmospheric brown carbon R. Zhao, A. K. Y. Lee, L. Huang, X. Li, F. Yang, and J. P. D. Abbatt Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, Canada Atmospheric Science and Technology Directorate/Science and Technology Branch, Environment Canada, Toronto, Canada School of Chemistry and Environment, Beihang University, Beijin...

A Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia B Atlantic Centre for Green Chemistry, Department of Chemistry, Saint Mary's University, Halifax, Nova Scotia, Canada C Department of Surfactant Technology, IQAC-CSIC, Jordi Girona 18-26, 08034, Spain D Corresponding authors: E-mail: [email protected] or pe...

an efficient and green method for the synthesis of pyrano[3,2-c]chromene or pyrano[4,3-b]pyrone derivatives is described by using a three-component condensation process of malononitrile, aldehyde, and 4-hydroxycoumarine or 4-hydroxypyrone in [bmim]bf4-licl as an ionic liquid.

pure azo schiff bases were readily and conveniently accessible in high yields by mixing of the reagents either as aqueous slurry, or by grinding at room temperature. this method, unlike a classical method, needs neither harsh conditions nor organic solvents. the satisfactory results were obtained with excellent yields, short reaction time, and operational simplicity in the experimental procedur...

a Surface Science Western, The University of Western Ontario, 999 Collip Circle, London, Ontario N6G 0J3, Canada b Department of Physics and Astronomy, The University of Western Ontario, London, Ontario N6A 3K7, Canada c Department of Chemistry, The University of Western Ontario, London, Ontario N6A 5B7, Canada d Chengdu Green Energy and Green Manufacturing Technology R&D Center, Chengdu Develo...

The development of the concepts for “Green Chemistry” and main principles this field are reviewed. Examples application these in different areas chemistry included. frequently used alternative solvents (green – water, PEG, perfluorinated solvents, supercritical liquids) preparative organic described. present future developments green education chemical technology considered.

Green Chemistry is placed in the frontier areas of research and has been focused for considerable recent research. Green Chemistry, the design of chemical products and processes that reduce or eliminate the use and generation of hazardous substances is an overarching approach that is applicable to all aspects of chemistry. From feedstocks to solvents, to synthesis and processing green chemistry...