Results 91 to 100 of about 20,742 (292)

Synthesis and Antimicrobial Evaluation of 1-[(2-Substituted phenyl)carbamoyl]naphthalen-2-yl Carbamates

open access: yesMolecules, 2016
Series of thirteen 1-[(2-chlorophenyl)carbamoyl]naphthalen-2-yl carbamates and thirteen 1-[(2-nitrophenyl)carbamoyl]naphthalen-2-yl carbamates with alkyl/cycloalkyl/arylalkyl chains were prepared and characterized.
Tomas Gonec   +10 more
doaj   +1 more source

Atropisomerism of Aromatic Carbamates

open access: yesChemistry – A European Journal, 2010
Abstractortho‐Haloarylcarbamates like 1–4 show a high rotational barrier about the Naryl bond of up to 91.6 kJ mol−1 as found for 1, which was determined by 2D exchange NMR spectroscopy (EXSY). It was further demonstrated that the height of the barrier not only depends on the substituents at the axis of chirality, but is also influenced by electronic ...
Tietze, Lutz Friedjan   +5 more
openaire   +3 more sources

Uso de plaguicidas inhibidores de acetilcolinesterasa en once entidades territoriales de salud en Colombia, 2002-2005

open access: yesBiomédica: revista del Instituto Nacional de Salud, 2010
Introducción. Por ser los plaguicidas anticolinesterásicos una causa importante de intoxicación y de muerte por intoxicación en los países en vía de desarrollo, el Instituto Nacional de Salud implementó el Programa de Vigilancia Epidemiológica de ...
Omayda Cárdenas   +2 more
doaj   +1 more source

Diethylenetriamine-Mediated Direct Cleavage of Unactivated Carbamates and Ureas

open access: yes, 2016
Diethylenetriamine is effective for the direct cleavage of unactivated carbamates and ureas without additional reagents and catalysts. Various carbamates and ureas were cleaved to afford products in good yield, and the reactions were not affected by air ...
Takashi Ohshima (1295094)   +3 more
core   +1 more source

Mechanochemical 1,1′-Carbonyldiimidazole-Mediated Synthesis of Carbamates

open access: yes, 2015
1,1′-Carbonyldiimidazole (CDI) was used as an eco-friendly acylation agent for the mechanochemical preparation of carbamates. The anticonvulsant N-methyl-O-benzyl carbamate was obtained in a vibrational ball-mill, while planetary ball-mill was suitable ...
Colacino, Evelina   +9 more
core   +1 more source

Activation of Metal Complexes With Ultrasound Waves for Targeted Anticancer Therapy

open access: yesAngewandte Chemie International Edition, EarlyView.
Ultrasound enables non‐invasive activation of metal‐based therapeutics deep within tumors. Acoustic cavitation can drive sonodynamic reactive oxygen species generation or mechanochemical metal–ligand bond dissociation, enabling controlled release of bioactive payloads.
Félix Grosjean   +3 more
wiley   +1 more source

Synthesis, Bioevaluation and Structure-Activity Relationships of Novel N-Aryl Carbamate Derivatives as Potential Fungicidal Agents

open access: yesAgronomy
The exploitation of natural products as lead compounds continues to serve as a vital strategy for the discovery of novel fungicidal agents. This work designed and synthesized a series of carbamate derivatives based on the natural product physostigmine ...
Xiyao Liu   +8 more
doaj   +1 more source

Cellulose carbamates via transcarbamoylation/transurethanization of methyl carbamates in superbase-acid conjugate ionic liquids

open access: yes
A sustainable homogeneous transcarbamoylation/transurethanization protocol for cellulose modification with methyl N-substituted carbamates was developed.
Kilpeläinen, Ilkka   +4 more
core   +1 more source

Deprotective Alkylation: A Platform for Alcohol‐to‐Amine Interconversion Using Nonafluoromesitylenesulfonamides

open access: yesAngewandte Chemie International Edition, EarlyView.
The straightforward conversion of alcohols to tertiary or secondary amines employing Nms‐amides in a single operation is described. The transformation features broad functional group tolerance and high stereospecificity, underscoring its utility in the synthesis of isotope‐labeled pharmaceuticals.
Jakub Brześkiewicz   +3 more
wiley   +1 more source

ASSESSMENT OF PESTICIDE RESIDUES IN CUCUMBER (Cucumis sativa) FRUITS FROM THREE MAJOR MARKETS IN THE AMANSIE WEST DISTRICT, GHANA

open access: yesFood and Environment Safety
Cucumber (Cucumis sativa), a widely consumed vegetable, often faces issues with pests and diseases, leading to the excessive use of pesticides during its cultivation.
Evans Ntim AMEDOR   +2 more
doaj  

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