Results 21 to 30 of about 1,065 (96)

Triazolium Salts as Appropriate Catalytic Scaffolds for 1,4-Additions toα,β-Unsaturated Carbonyls

, 2014
1,2,3-Triazole derivatives containing a rigid dihydroanthracenyl skeleton are suitable precursors for both organometallic and organo-based catalysts.
Gregorio Guisado‐Barrios, Sonia Mallet‐Ladeira, Teuma, Emmanuelle, Ielyzaveta Bratko, Bratko, Ielyzaveta, Peris, Eduardo, Mallet-Ladeira, Sonia, Emmanuelle Teuma, Eduardo Peris, Guisado-Barrios, Gregorio, Favier, Isabel, Isabelle Favier, Gómez, Montserrat, Montserrat Gómez   +13 more
core   +1 more source

Optimization of a Negishi Cross-Coupling Reaction for the Synthesis of β,β-Disubstituted Ketones

, 2020
Negishi cross-coupling reactions involve a transition metal-catalyzed coupling of an organohalide and an organozinc to form a new carbon-carbon bond, which is a significant accomplishment in synthetic organic chemistry.
Berlin, Cami
core   +1 more source

Unexpected Byproducts Formed During Oxidative Water Treatment of Organic Contaminants [PDF]

, 2020
Oxidative water treatment can be used to transform organic contaminants present in trace concentrations in industrial wastewater, municipal wastewater undergoing advanced treatment prior to its use as drinking water, and soil and groundwater impacted by ...
Van Buren, Jean
core   +1 more source

Organocatalytic Asymmetric Synthesis of Chiral Dioxazinanes and Dioxazepanes with in Situ Generated Nitrones via a Tandem Reaction Pathway Using a Cooperative Cation Binding Catalyst

, 2016
Heterocyclic skeletons play major roles in pharmaceuticals and biological processes. Cycloaddition reactions are most suitable synthetic tools to efficiently construct chemically diverse sets of heterocycles with great structural complexity owing to the ...
Hailong Yan (694143), Jun Ao (3392090), Choong Eui Song (1672276), Yidong Liu (155545), Sushovan Paladhi (1848733)   +4 more
core   +1 more source

Hexabromoacetona na preparação de amidas: síntese e reatividade de derivados de benzimidazol e quinoxalina [PDF]

, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2010.A busca por novas metodologias sintéticas, estudos de reatividade e obtenção de moléculas de ...
Menezes, Fabrício Gava
core  

Flavouring Group Evaluation 80, Revision 2 (FGE.80Rev2): Consideration of alicyclic, alicyclic‐fused and aromatic‐fused ring lactones evaluated by the JECFA (61st and 82nd meetings) structurally related to an aromatic lactone evaluated in FGE.27

EFSA Journal
The EFSA Panel on Food Additives and Flavourings was requested to evaluate 14 flavouring substances assigned to the Flavouring Group Evaluation 80 (FGE.80), using the Procedure as outlined in the Commission Regulation (EC) No 1565/2000.
EFSA Panel on Food Additives and Flavourings (FAF), Laurence Castle, Monica Andreassen, Gabriele Aquilina, Maria Bastos, Polly Boon, Biagio Fallico, Reginald Fitzgerald, Maria Jose Frutos Fernandez, Bettina Grasl‐Kraupp, Ursula Gundert‐Remy, Rainer Gürtler, Eric Houdeau, Marcin Kurek, Henriqueta Louro, Patricia Morales, Sabina Passamonti, Romualdo Benigni, Gisela Degen, Karl‐Heinz Engel, Paul Fowler, Karin Nørby, Camilla Svendsen, Maria Carfí, Borana Dino, Gabriele Gagliardi, Carla Martino, Wim Mennes   +27 more
doaj   +1 more source

Synthesis of Natural Products via sequential Olefin Cross Metathesis - Cyclisation

, 2006
Das Synthesepotential der Olefinkreuzmetathese (CM) konnte in den letzten Jahren durch die Entwicklung definierter Ruthenium-Katalysatoren mit einem N-heterocyclischen Carben- und chelatisierenden o-Isopropoxybenzylidenliganden, die sich durch eine ...
Gebauer, Julian
core   +1 more source

Characterizing sources and health risks of airborne Carbonyl compounds in a subtropical coastal atmosphere in South China

Carbonyl compounds are critical air pollutants with adverse impacts on regional air quality and human health. This study presents a pioneering analysis of spatiotemporal distribution, source appointment, and health risk assessments of carbonyl compounds ...
Xu, Yang, Chen, Yi, Wang, Zhe, Ning, Zhi, Sun, Mingyao, Yu, Jian Zhen, Feng, Xin, Gu, Dasa, Zheng, Penggang, Chen, Yao, Sun, Hao, Hui, Lirong   +11 more
core   +1 more source

Synthesis Of Drug Targeted Carbonyl Compounds [PDF]

, 2013
Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2013Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2013Anaç ve ekibinin yaptıkları çalışmalarda, α, β-doymamış karbonil bileşikleri ile ...
Kahraman, Selime
core  

Etudes structurales et biochimiques de la γ-kétol réductase chloroplastique d'Arabidopsis thaliana : caractérisation d’une nouvelle classe de « Medium chain dehydrogenase/reductase » impliquée dans la détoxification. [PDF]

, 2015
Under the influence of the oxidative stress, the production of the Reactive Oxygen Species (ROS) is increased. These compounds can react with various biological molecules like free polyunsaturated fatty acids or derived from lipids producting ...
Mas Y Mas, Sarah
core