Results 71 to 80 of about 39,041 (288)
Model reactions and natural occurrence of furans from hypersaline environments [PDF]
Biogeosciences, 2014 Volatile organic compounds like furan and its derivatives are important for atmospheric properties and reactions. In this work the known abiotic formation of furan from catechol under Fenton-like conditions with Fe3+ sulfate was revised
T. Krause +3 more
doaj +1 more source
Comparison of Predicted and Observed Dioxin Levels in Fish: Implications for Risk Assessment [PDF]
, 1993 After comparing sampled and modelled dioxin levels in the tissue of fish near pulp and paper mill discharges, the authors argue that, until an improved bioaccumulation model is incorporated into EPA\u27s Risk assessment process, determination of human ...
LaKind, Judy S., Q., Daniel, Naiman
core +2 more sources
Synthesis and Characterization of Three New Furan-Containing Terpyridine Derivatives
MolbankThree new terpyridine derivatives which contain a pendant furan heterocycle have been prepared and characterized. The first two, 4′-(4,5-dimethylfuran-2-yl)-2,2′:6′,2″-terpyridine (1) and 4′-((1,3-dioxolan-2-yl)furan-2-yl)-2,2′:6′,2″-terpyridine (2), are
Jérôme Husson
doaj +1 more source
Gold(I)-catalyzed formation of furans by a Claisen-type rearrangement of ynenyl allyl ethers
Beilstein Journal of Organic Chemistry, 2011 A series of ynenyl allyl ethers were rearranged into polysubstituted furans in the presence of a gold(I) catalyst. It is proposed that the transformation involves a Claisen-type rearrangement that allows the efficient creation of quaternary centers under
Florin M. Istrate, Fabien Gagosz
doaj +1 more source
A screening method for ranking chemicals by their fate and behaviour in the environment and potential toxic effects in humans following non-occupational exposure [PDF]
, 2004 A large number of chemicals are released intentionally or unintentionally into the environment each year. These include thousands of substances that are currently listed worldwide and several hundred new substances added annually (Mücke et al., 1986 ...
Capelton, A +2 more
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Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Greenhouse gas (GHG) emissions have emerged as one of the most critical drivers of climate change; this is primarily due to high concentrations and long atmospheric life of carbon dioxide (CO2). For a significant amount of time, various biological processes such as microalgal cultivation, cyanobacterial systems, photosynthetic microorganisms ...
Sadhana Semwal, Harish Chandra Joshi
wiley +1 more source
E3S Web of Conferences, 2018 Aldol condensation between furans and levulinates shows a selective route for the polymers production. In this work, the influences of mole ratio between furans and levulinates as well as substrate species on the formation of polymers structure were ...
Tan Jin +3 more
doaj +1 more source
Biotechnology Progress, EarlyView.For biofuels production, hemicellulose pre‐hydrolysate is considered as an attractive feedstock rich in fermentable sugars. The pre‐hydrolysate derived from lignocellulosic biomass comprises, along with sugars, several inhibitors which can hamper its efficient conversion.
Mariem Theiri +3 more
wiley +1 more source
Greening Consumer Electronics: Moving Away From Bromine and Chlorine [PDF]
, 2009 Presents case studies of seven electronics companies that have engineered environmental solutions that eliminate the use of most brominated and chlorinated chemicals that generate toxic materials.
Alexandra McPherson +2 more
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Skeletal Editing from Pyridine to Aniline via C‐Insertion and N‐Isomerization
ChemistryEurope, EarlyView.A concise protocol is presented that converts pyridines into anilines by externalizing the original pyridine nitrogen at either the "ipso" or "ortho" position, which results in para or meta‐primary aniline products. A key carbene‐insertion step precedes nitrogen migration, preserving both ring size and overall structure.
Yun Luo +3 more
wiley +1 more source