Results 21 to 30 of about 12,662 (287)
Photochromic organic-inorganic hybrid nanocomposite hard coatings with tailored fast switching properties [PDF]
, 1999 A recently developed photochromic organic-inorganic nanocomposite (Nanomer) coating system is investigated, which is based on an epoxysilane as network former, different bisepoxides as spacer and an organic amine as thermal cross-linker.
Fries, Kira +2 more
core +2 more sources
Primary investigation into the occurrence of Hydroxymethylfurfural (HMF) in a range of smoked products [PDF]
, 2018 5-hydroxymethylfurfural (HMF) is produced in foods through many different pathways. Recently, studies have revealed its potential mutagenic and carcinogenic properties.
Bouzalakou-Butel, Laura-Artemis +3 more
core +2 more sources
Applied Sciences, 2012 The reaction of 2,4-diethoxy-6-trifluoromethyl-3,4-dihydro-2H-pyran (1) with aromatic compounds in refluxing acetonitrile in the presence of p-toluenesulfonic acid gave the mixture of 4-aryl-2-trifluoromethyl-4H-pyrans (3) and 6-aryl-1,1,1-trifluorohexa ...
Norio Ota +4 more
doaj +1 more source
Analysis of volatile organic compounds released from human lung cancer cells and from the urine of tumor-bearing mice [PDF]
, 2012 Backgrounds A potential strategy for the diagnosis of lung cancer is to exploit the distinct metabolic signature of this disease by way of biomarkers found in different sample types.
Yosuke Hanai +5 more
core +2 more sources
Spiropyran-based reversible, light-modulated sensing with reduced photofatigue [PDF]
, 2009 Switchable materials have tremendous potential for application in sensor development that could be applied to many fields. We are focusing on emerging area of wireless sensor networks due to the potential impact of this concept in society.
Aleksandar Radu +45 more
core +1 more source
Convergent Total Synthesis of 16β‐Hydroxylpseudobufarenogin
Angewandte Chemie, EarlyView.We present a novel convergent strategy that integrates Pd/Ag‐promoted Suzuki–Miyaura coupling with Ir‐catalyzed radical‐relay cyclization, enabling the first total synthesis of 16β‐hydroxylpseudobufarenogin. This approach is broadly applicable to the total synthesis of various oxygenated bufadienolides by simply modifying the fragment structures ...
Wataru Shigematsu +3 more
wiley +2 more sources
Litter Quality of Populus Species as Affected by Free-Air CO2 [PDF]
, 2009 The effect of elevated CO2 and nitrogen fertilization on the molecular chemistry of litter of three Populus species and associated soil organic matter (SOM) was investigated by pyrolysis-gas chromatography/mass spectrometry.
Buurman, P., Hoosbeek, M.R., Vermue, E.
core +4 more sources
Angewandte Chemie, EarlyView.The use of transition‐metal catalysts and design of chiral ligands have allowed chemists to access highly functionalized benzofused 5‐ and 6‐ membered rings in high yield and enantioselectivity. A common strategy used relies on an intermolecular carbometalation across alkynes and olefins, usually followed by a subsequent intramolecular carbometalation.
Clara Jans +3 more
wiley +2 more sources
Cu-phthalocyanine Coated Hybrid Magnetic Nanoparticles: Preparation and Application in the Synthesis of Mono- and Bis pyrano[2,3-d]pyrimidinones and mono- and Bis-2-amino-4H-pyrans [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2020 In this research, Cu-phthalocyanine coated hybrid magnetic nanoparticles have been prepared in a simple method and evaluated as an efficient catalyst in the preparation of mono- and bis-pyrano[2,3-d]pyrimidinones and mono- and bis-2-amino-4H-pyrans from ...
Ali Reza Karimi +2 more
doaj +1 more source
Alcohol‐Directed Carboamination of Conjugated Enynes
Angewandte Chemie, EarlyView.The first general three‐component intermolecular Pd‐catalyzed carboamination of conjugated enynes enables the coupling of anilines and aryl triflates to produce functionalized allenic amines, utilizing a native alcohol directing group to control regioselectivity.
Helena Solé‐Àvila +3 more
wiley +2 more sources