Results 321 to 330 of about 76,323 (380)

Manganese Catalyzed Hydrogenation of Carbamates and Urea Derivatives.

Journal of the American Chemical Society, 2019
We report the hydrogenation of carbamates and urea derivatives, two of the most challenging carbonyl compounds to be hydrogenated, catalyzed for the first time by a complex of an earth-abundant-metal.
U. Das, Amit Kumar, Yehoshoa Ben‐David, M. Iron, D. Milstein   +4 more
semanticscholar   +1 more source

Synthesis of N-(Hetero)aryl Carbamates via CuI/MNAO Catalyzed Cross-Coupling of (Hetero)aryl Halides with Potassium Cyanate in Alcohols.

Journal of Organic Chemistry, 2018
An efficient route to N-(hetero)aryl carbamates was developed through CuI/MNAO [2-((2-methylnaphthalen-1-yl)amino)-2-oxoacetic acid] catalyzed cross-coupling of (hetero)aryl chlorides with potassium cyanate in alcohols at 120-130 °C. This method utilizes
S. Kumar, D. Ma
semanticscholar   +1 more source

Chemoselective Synthesis of Carbamates using CO2 as Carbon Source.

ChemSusChem, 2016
Synthesis of carbamates directly from amines using CO2 as the carbon source is a straightforward and sustainable approach. Herein, we describe a highly effective and chemoselective methodology for the synthesis of carbamates at room temperature and ...
D. Riemer, P. Hirapara, Shoubhik Das
semanticscholar   +1 more source

Azetidine and Piperidine Carbamates as Efficient, Covalent Inhibitors of Monoacylglycerol Lipase.

Journal of Medicinal Chemistry, 2017
Monoacylglycerol lipase (MAGL) is the main enzyme responsible for degradation of the endocannabinoid 2-arachidonoylglycerol (2-AG) in the CNS. MAGL catalyzes the conversion of 2-AG to arachidonic acid (AA), a precursor to the proinflammatory eicosannoids
C. Butler, E. M. Beck, A. Harris, Zhen Huang, Laura A McAllister, Christopher W. am Ende, K. Fennell, Timothy L. Foley, Kari R. Fonseca, S. Hawrylik, Douglas S. Johnson, J. Knafels, S. Mente, G. Noell, J. Pandit, Tracy Phillips, Justin R. Piro, Bruce N. Rogers, T. Samad, Jane L. Wang, Shuangyi Wan, M. Brodney   +21 more
semanticscholar   +1 more source

A method for the determination of methyl carbamate and ethyl carbamate in wines

Food Additives and Contaminants, 1992
A method is described for the simultaneous determination of methyl carbamate (MC) and ethyl carbamate (EC) in wines that is based on: (a) extraction of the sample with dichloromethane using an extraction tube or an alumina-Celite column, (b) concentration of the extract to a small volume, and (c) determination by gas-liquid chromatography-thermal ...
Nrisinha P. Sen, Stephen W. Seaman, Dorcas Weber   +2 more
openaire   +3 more sources

POISONING BY CARBAMATE PESTICIDES

Medical Journal of Australia, 1977
In recent years the number of carbamate pesticides registered for use in New South Wales has increased. Some of the newer carbamates are very toxic and have cholinergic properties similar to those of the organic phosphates, though the effect is of much shorter duration.
Bermingham S, Simpson Gr
openaire   +3 more sources

O-CARBAMATES

1986
Publisher Summary O-Carbamates represent a class of compounds distinct from N-carbamates. This chapter discusses carbamates with varying substituents on the oxygen atom. The industrial applications of carbamates such as those reported as a tranquilizer, a crease-resistant agent in the textile industry, a solvent, hair conditioners, a plasticizer, and ...
Stanley R. Sandler, Wolf Karo
openaire   +3 more sources

C-O/C-H Coupling of Polyfluoroarenes with Aryl Carbamates by Cooperative Ni/Cu Catalysis.

Organic Letters, 2016
Cross-coupling of polyfluoroarenes with aryl carbamates through the cleavage of both sp(2) C-O and C-H bonds is reported. The reaction conditions are simple, and only transition-metal catalysts and ligands are essential.
Yang Wang, Song-Bai Wu, Wenjun Shi, Zhangjie Shi   +3 more
semanticscholar   +1 more source

The Metabolism Of Pesticidal Carbamates

CRC Critical Reviews in Toxicology, 1971
(1971). The Metabolism Of Pesticidal Carbamates. CRC Critical Reviews in Toxicology: Vol. 1, No. 1, pp. 33-54.
A. J. Ryan, James B. Knaak
openaire   +3 more sources

Iron-Catalyzed Stereoselective Cross-Coupling Reactions of Stereodefined Enol Carbamates with Grignard Reagents.

Angewandte Chemie, 2016
A practical and highly stereoselective iron-catalyzed cross-coupling reaction of stereodefined enol carbamates and Grignard reagents to yield tri- and tetrasubstituted acrylates is reported.
Ana Cristina Parra Rivera, Raymond Still, D. Frantz   +2 more
semanticscholar   +1 more source