Results 31 to 40 of about 400,125 (257)

Synthesis of some biologically active 2,4’-bipyridine-5-carbonitriles carrying the 4-hydroxyphenylthio moiety [PDF]

open access: yesJournal of the Serbian Chemical Society, 2009
A series of new 4-aryl-2’-[(4-hydroxyphenyl)thio]-6oxo-1,6-dihydro-2,4’-bipyridine-5-carbonitriles (3a–k) and 6-amino-4aryl-2’-[(4-hydroxyphenyl)thio]-2,4’-bipyridine-5-carbonitriles (4a–h) were synthesized from 4-hydroxythiophenol (1). The reaction of 4-
T. KARABASANAGOUDA   +2 more
doaj   +3 more sources

N-(((1S,5R)-6,6-Dimethylbicyclo[3.1.1]hept-2-en-2-yl)methyl)-3-((1R,5S)-6,6-dimethylbicyclo[3.1.1]hept-2-ene/ane-2-carboxamido)-N,N-dimethylpropan-1-aminium Bromide

open access: yesMolbank, 2023
The synthesis of the title compounds was performed from (-)-cis-myrtanic and (-)-myrtenic acids. The compounds obtained were characterized using 1H- and 13C-NMR, IR, and high-resolution mass spectrometry.
Ilmir R. Gilfanov   +10 more
doaj   +1 more source

Transfer of electrophilic NH using convenient sources of ammonia: direct synthesis of N–H sulfoximines from sulfoxides [PDF]

open access: yes, 2016
The transfer of nitrogen atoms is extremely valuable in the preparation of medicinal compounds. Here, a new system for NH transfer is developed to prepare sulfoximines, which are emerging as valuable motifs for drug discovery.
Bentley   +43 more
core   +1 more source

Cloud condensation nuclei activity, closure, and droplet growth kinetics of Houston aerosol during the Gulf of Mexico Atmospheric Composition and Climate Study (GoMACCS) [PDF]

open access: yes, 2009
In situ cloud condensation nuclei (CCN) measurements were obtained in the boundary layer over Houston, Texas, during the 2006 Gulf of Mexico Atmospheric Composition and Climate Study (GoMACCS) campaign onboard the CIRPAS Twin Otter.
Dubey, Manvendra K.   +12 more
core   +2 more sources

STUDY OF ANTIMICROBIAL ACTIVITY OF ALKYL (R-ARYL) OXY DIALKYL AMMONIUM SALTS TOWARDS THE REFERENCE STRAINS OF MICROORGANISMS

open access: yesMìkrobìologìâ ì Bìotehnologìâ, 2018
Aim: evaluation of the antimicrobial properties of alkyl (R-aryl) oxy dialkyl ammonium salts towards the reference strains of microorganisms. Methods. The objects of the study were 52 derivatives of alkyl (R-aryl) oxy dialkyl ammonium, synthesized at the
В. Б. Настенко   +5 more
doaj   +1 more source

Pentazole and Ammonium Pentazolate: Crystalline Hydro-Nitrogens at High Pressure

open access: yes, 2017
Two new crystalline compounds, pentazole (N_{5}H) and ammonium pentazolate (NH_{4})(N_{5}), both featuring cyclo-{\rm N_{5}^{-}} are discovered using first principles evolutionary search of the nitrogen-rich portion of the hydro-nitrogen binary phase ...
Oleynik, Ivan I., Steele, Brad A.
core   +4 more sources

Impact of aeration on the removal of organic matter and nitrogen compounds in constructed wetlands treating the liquid fraction of piggery manure [PDF]

open access: yes, 2019
The increasing demand for sustainable, robust and cost-efficient wastewater treatment techniques strengthen the implementation of constructed wetlands (CWs) in the agricultural sector.
Donoso Pantoja, Natalia Carolina   +4 more
core   +1 more source

Process for purification of waste water produced by a Kraft process pulp and paper mill [PDF]

open access: yes, 1979
The water from paper and pulp wastes obtained from a mill using the Kraft process is purified by precipitating lignins and lignin derivatives from the waste stream with quaternary ammonium compounds, removing other impurities by activated carbon produced
Humphrey, M. F.
core   +1 more source

Determination of Pharmaceuticals in Coastal Systems Using Solid Phase Extraction (SPE) Followed by Ultra Performance Liquid Chromatography – tandem Mass Spectrometry (UPLC-MS/MS) [PDF]

open access: yes, 2015
This paper describes the optimization and validation of an analytical method for the determination of 83 pharmaceutically active compounds (PhACs) in aqueous samples using solid-phase extraction (SPE) followed by ultra performance liquid chromatography ...
Baena Nogueras, Rosa María   +3 more
core   +1 more source

Peripheral blood proteome biomarkers distinguish immunosuppressive features of cancer progression

open access: yesMolecular Oncology, EarlyView.
Immune status significantly influences cancer progression. This study used plasma proteomics to analyze benign 67NR and malignant 4T1 breast tumor models at early and late tumor stages. Immune‐related proteins–osteopontin (Spp1), lactotransferrin (Ltf), calreticulin (Calr) and peroxiredoxin 2 (Prdx2)–were associated with systemic myeloid‐derived ...
Yeon Ji Park   +6 more
wiley   +1 more source

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