Results 41 to 50 of about 194,755 (364)
One of the main requirements for young wines is preservation the qualities of the grapes, including the bright varietal aroma characteristic of essential oils concentrated in the grape skins.
L. V. Gnetko +3 more
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Synthesis and Biological Evaluation of Hydrazone Derivatives as Antifungal Agents
Emerging yeasts are among the most prevalent causes of systemic infections with high mortality rates and there is an urgent need to develop specific, effective and non-toxic antifungal agents to respond to this issue.
Bruna B. Casanova +7 more
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Enantioselective Organocatalyzed Michael Addition of Isobutyraldehyde to Maleimides in Aqueous Media
Thiourea was introduced into (R,R)-1,2-diphenylethylenediamine as an organocatalyst to promote the reaction between isobutyraldehydes and maleimides. Enantioselective Michael addition reaction was carried out as an eco-friendly method using water as the ...
Jae Ho Shim +3 more
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Samples of freshly fallen snow were collected at the high alpine research station Jungfraujoch, Switzerland, during the Cloud and Aerosol Characterization Experiments (CLACE) 5 in February and March 2006.
Starokozhev, Elena +4 more
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Vertical distribution of aldehydes and phytoplankton structure: a case study of urban lake [PDF]
In water systems, both biologically and chemically synthesized molecules may reduce environmental quality and influence essential ecosystems structure and function.
Elżbieta Szeląg-Wasielewska +1 more
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Aldehydes are very reactive carbonyl compounds that are widespread naturally. Aldehydes can be produced in vivo by oxidative reactions and are able to disturb biological functions through binding and modifying biomolecules.
Kuroda, Naotaka +2 more
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An environmentally benign one-pot synthesis of 1,2-dihydro-1-aryl-3H-naphth[1,2-e][1,3]oxazin-3-one derivatives catalysed by phosphomolybdic acid [PDF]
A phosphomolybdic acid catalysed novel method for the synthesis of 1,2-dihydro-1-aryl-3H-naphth[1,2-e][1,3]oxazin-3-one derivatives by a one-pot, three-component reaction of β-naphthol, aromatic aldehydes and urea in excellent yields is described.
ATUL CHASKAR +4 more
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One-pot synthesis of 1,3,5-triazine-2,4-dithione derivatives via three-component reactions
A catalyst-free one-pot synthetic methodology was developed for the preparation of 1,3,5-triazine-2,4-dithione derivatives through three-component reactions of arylaldehydes, thiourea, and orthoformates.
Gui-Feng Kang, Gang Zhang
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Branched chain aldehydes: production and breakdown pathways and relevance for flavour in foods
Branched aldehydes, such as 2-methyl propanal and 2- and 3-methyl butanal, are important flavour compounds in many food products, both fermented and non-fermented (heat-treated) products. The production and degradation of these aldehydes from amino acids
Engels, W.J.M., Smit, B.A., Smit, G.
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Here we report a facile and efficient triphosgene-assisted one-pot conversion of aldehydes/ketones into nitriles/amides. The triphosgene, a kind of phosgene alternative, containing both ester linkage and chloromethyl units, easily reacts with oximes for ...
Jianguo, liu, Xiu-Zhi, Wei, Longlong, Ma
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