Results 81 to 90 of about 20,742 (292)

Research Progress on the Reaction of Carbon Dioxide with Hydrazones and Their Derivatives

open access: yesMolecules
CO2, an abundant and renewable C1 source, presents significant potential for applications in organic synthesis. Hydrazones, recognized for their distinctive properties, exhibit high versatility in synthetic chemistry, facilitating numerous chemical ...
Hong-Xia Sun   +12 more
doaj   +1 more source

Pollution des eaux de surface par les carbamates

open access: yes, 2010
Les carbamates, pesticides organiques dérivés de l'acide carbamique, constituent le premier groupe chimique en utilisation et en diversité : leur large spectre d'action (insecticide, herbicide, fongicide) ainsi que leur faible persistance dans l ...
J. Danjou   +4 more
core   +1 more source

Resveratrol-Based Carbamates as Selective Butyrylcholinesterase Inhibitors: Design, Synthesis, Computational Study and Biometal Complexation Capability

open access: yesMolecules
Considering our previous experience in the design of new cholinesterase inhibitors, especially resveratrol analogs, in this research, the basic stilbene skeleton was used as a structural unit for new carbamates designed as potentially highly selective ...
Maja Sviben   +8 more
doaj   +1 more source

Amidation through carbamates

open access: yes, 2009
N-Alkyl carbamates of primary amines are easily converted into amides under treatment with Grignard reagents. Consequently, primary amines can be converted into amides in a one-pot reaction through carbamate protection and Grignard addition.
Izquierdo Ferrer, Javier   +3 more
core   +1 more source

Benzene-di-N-substituted carbamates as conformationally constrained substrate analogs of cholesterol esterase [PDF]

open access: yes, 2014
Benzene-1,2-, 1,3-, and 1,4-di-N-substituted carbamates (1-15) are synthesized as the constrained analogs of gauche, eclipsed, and anti conformations, respectively, for the glycerol backbones of triacylglycerol.
Chiou, S.Y.   +4 more
core   +1 more source

O-Fluoromethyl carboxylates and O-fluoromethyl carbamates

open access: yes
The fluoride catalyzed reaction between acyl fluorides and monomeric formaldehyde affords fluoromethyl carboxylates in acceptable yields. Fluoromethyl fluoroformate, readily accessible from the corresponding dichloro compd., condenses with amines to give
Schlosser, Manfred, Limat, Dominique
core   +1 more source

Enantioselective Rh-Catalyzed Hydrogenation of Enol Acetates and Enol Carbamates with Monodentate Phosphoramidites [PDF]

open access: yes, 2005
Monodentate phosphoramidites, in particular PipPhos and its octahydro analogue, are excellent ligands for the rhodium-catalyzed asymmetric hydrogenation of aromatic enol acetates, enol carbamates, and 2-dienol carbamates up to 98% ee.
Panella, Lavinia   +12 more
core   +1 more source

Proline-Based Carbamates as Cholinesterase Inhibitors

open access: yesMolecules, 2017
Series of twenty-five benzyl (2S)-2-(arylcarbamoyl)pyrrolidine-1-carboxylates was prepared and completely characterized. All the compounds were tested for their in vitro ability to inhibit acetylcholinesterase (AChE) and butyrylcholinesterase (BChE), and
Hana Pizova   +10 more
doaj   +1 more source

Aminocarb Exposure Induces Cytotoxicity and Endoplasmic Reticulum Stress-Mediated Apoptosis in Mouse Sustentacular Sertoli Cells: Implications for Male Infertility and Environmental Health

open access: yesBiology
Exposure to pesticides, poses a significant threat to male fertility by compromising crucial cells involved in spermatogenesis. Aminocarb, is a widely used carbamate insecticide, although its detrimental effects on the male reproductive system ...
Sílvia Moreira   +6 more
doaj   +1 more source

Crystal structures of ethyl {2-[4-(4-isopropylphenyl)thiazol-2-yl]phenyl}carbamate and ethyl {2-[4-(3-nitrophenyl)thiazol-2-yl]phenyl}carbamate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
The title compounds, C21H22N2O2S (I) and C18H15N3O4S (II), are structural analogs of the alkaloid Thiosporine B. Both molecules adopt a near-planar V-shaped conformation, which is consolidated by intramolecular N—H...N and C—H...O hydrogen bonds.
Elena V. Sukhonosova   +6 more
doaj   +1 more source

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