搜索结果: 1-6 共查到“知识库 理学 carboxylic acids”相关记录6条 . 查询时间(0.054 秒)
Liquid chromatography/mass spectrometry analysis of perfluoroalkyl carboxylic acids and perfluorooctanesulfonate in bivalve shells: Extraction method optimization
Perfluorinated carboxylic acids Perfluorooctanesulfonate Shell Soft tissue Acid digestion Solid phase extraction
2013/12/12
Different extraction methods, including extraction by organic solvents with and without acetic acid digestion,and mixed inorganic acid digestion coupled with solid phase extraction (SPE), were develop...
Friedel-Crafts acylation of arenes with carboxylic acids using silica gel supported AlCl3
Acylation aluminium trichloride ketones silica gel
2010/10/19
Aromatic compounds react smoothly with carboxylic acids in the presence of silica gel supported aluminium trichloride to afford the corresponding ketones with high regioselectivity in high to excellen...
Ionic liquids as solvent for efficient esterification of carboxylic acids with alkyl halides
Ionic liquids green solvent esterification
2010/10/15
The selective esterification of carboxylic acid derivatives with a variety of alkyl halides was carried out using ionic liquid as solvent in the presence of triethylamine. The reaction was found to pr...
Effects of sunlight and hydroxyl radical on dissolved organic matter: Bacterial growth efficiency and production of carboxylic acids and other substrates
Effects of sunlight hydroxyl radical dissolved organic matter: Bacterial growth efficiency production of carboxylic acids other substrates
2014/5/19
This study examines the importance of several possible mechanisms causing sunlight-mediated changes in the amounts of bacterial utilization and biomass growth on dissolved organic matter (DOM) from al...
Application of IBX Method for the Synthesis of Ketones from Carboxylic Acids
IBX (o-iodoxy benzoic acid) methoxy phenyl propionic acid ketone Oxidation
2010/4/21
Methoxy phenyl propionic acid and some derivatives are converted to ketones using a new method. All classical methods to obtain ketones from carboxylic acids via acid halide consistently gave very low...
The Isolation of Carboxylic Acids from the Flowers of Delphinium formosum
Carboxylic acid, isolation Delphinium formosum chromatography
2010/6/27
From the flowers of Delphinium formosum Boiss. et Huet. (Ranunculaceae) trans-aconitic, p-hydroxybenzoic, p-coumaric, caffeic and chlorogenic acids were isolated and identified. In addition, protocate...