Tag Archives: green chemistry

Whisky lactone

Whisky Lactone Whisky lactone, also known as β-methyl-γ-octalactone or quercus lactone (from the Latin for oak treeQuercus alba), is a flavouring found in American bourbon whiskies, and is also found in all types of oak. The flavour gets into the whisky when … Continue reading

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Green N-Methylation of Electron Deficient Pyrroles with Dimethylcarbonate

The N-methylation of electron-deficient pyrroles was affected using dimethyl carbonate in the presence of DMF and catalytic DABCO. This alkylation methodology has proven useful for the alkylation of a variety of pyrroles in 72−98% yields and is considered to be greenchemistry relative … Continue reading

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Article On Alternative Solvents:  Shades of Green

The use of alternative reaction solvents is reviewed in terms of life cycle. Supercritical CO2, ionic liquids, fluorous solvents, water, and renewable organics are compared on the basis of their solvency, ease of use, reusability, health and safety, environmental impact, and economic cost. … Continue reading

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GAP chemistry for pyrrolyl coumarin derivatives: a highly efficient one-pot synthesis under catalyst-free conditions

Green Chem., 2013, Advance Article DOI: 10.1039/C3GC41799A, Communication Huiyan Wang, Xuecheng Liu, Xian Feng, Zhibin Huang, Daqing Shi This synthesis was confirmed to follow the GAP chemistry process, which can avoid traditional chromatography and recrystallization purification methods. GAP chemistry for … Continue reading

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Axial-to-central chirality transfer in cyclization processes

Axial-to-central chirality transfer in cyclization processes Substrates, bearing axial chirality, can cyclize intra- or inter-molecularly with concomitant transfer of axial-to-central chirality to produce at least one stereocenter. In order to satisfy a strict definition of axial-to-central chirality transfer, the initial … Continue reading

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An efficient palladium catalyst on bentonite for Suzuki-Miyaura reaction at room temperature

An efficient palladium catalyst on bentonite for Suzuki-Miyaura reaction at room temperature Green Chem., 2013, Advance Article DOI: 10.1039/C3GC41469H, Paper Guodong Ding, Weitao Wang, Tao Jiang, Buxing Han The Pd/bentonite catalyst prepared by a simple impregnation method in water is … Continue reading

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Chemical conversion of biomass-derived hexose sugars to levulinic acid over sulfonic acid-functionalized graphene oxide catalysts

Green Chem., 2013, 15,2935-2943 DOI: 10.1039/C3GC40353J, Paper Pravin P. Upare, Ji-Woong Yoon, Mi Yeon Kim, Hyo-Yoon Kang, Dong Won Hwang, Young Kyu Hwang, Harold H. Kung, Jong-San Chang Sulfonated graphene oxide (GO-SO3H) catalyst selectively decomposes glucose to levulinic acid (LA) with … Continue reading

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Cyclodextrin-Modified Zeolites as Drug-Delivery Nanocontainers

Zeolites modified with aminoalkoxysilanes and cyclodextrin show different uptake and release properties depending on which silane is used Multifunctional nanocontainers for imaging, targeting, and drug release are a main research area in bio-nanomedicine. Jurriaan Huskens and colleagues, University of Twente, … Continue reading

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The Top 10 Challenges for Brain Science in 2013

Image credit: Wikipedia http://www.forbes.com/sites/daviddisalvo/2012/12/30/top-10-challenges-for-brain-science-in-2013/ Share this:

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Ternary modified TiO2 as a simple and efficient photocatalyst for green organic synthesis

  TiO2 ternary-modified with Fe3+, Ni2+, and Au nanoparticles exhibited a noticeable photocatalytic activity for selective cyclohexane oxidation with O2 under sunlight irradiation. Ternary modified TiO2 as a simple and efficient photocatalyst for green organic synthesis Yusuke Ide,*a   Naoyuki Kawamoto,a   … Continue reading

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