Results 91 to 100 of about 11,656 (303)

[2+2] Photocycloaddition of Cinnamates in Flow and Development of a Thiourea Catalyst.

Angewandte Chemie, 2015
Cyclobutanes derived from the dimerization of cinnamic acids are the core scaffolds of many molecules with potentially interesting biological activities.
Reem Telmesani, S. Park, Tessa Lynch-Colameta, Aaron B. Beeler   +3 more
semanticscholar   +1 more source

Exploring Chemical Variability in the Essential Oil of Artemisia absinthium L. in Relation to Different Phenological Stages and Geographical Location

Chemistry &Biodiversity, EarlyView.
ABSTRACT The plant essential oils (EOs) play a fundamental role in the adaptation to different habitats and environmental conditions. To verify the influence of these factors on the EO of Artemisia absinthium L., we conducted a pharmacognostic study on this species, collected during both the vegetative (V) and flowering (F) stages, in two different ...
Paola Malaspina, Flavio Polito, Andrea Mainetti, Sana Khedhri, Vincenzo De Feo, Laura Cornara   +5 more
wiley   +1 more source

Enhanced Toxicity of Bisphenols Together with UV Filters in Water: Identification of Synergy and Antagonism in Three-Component Mixtures

Molecules, 2022
Contaminants of emerging concern (CEC) localize in the biome in variable combinations of complex mixtures that are often environmentally persistent, bioaccumulate and biomagnify, prompting a need for extensive monitoring.
Błażej Kudłak, Natalia Jatkowska, Wen Liu, Michael J. Williams, Damia Barcelo, Helgi B. Schiöth   +5 more
doaj   +1 more source

Chemoenzymatic Route toward a De Novo Enantioselective Total Synthesis of (S)‐Baclofen Based on Metal‐Catalyzed Hydroformylation and Enzymatic Transamination

ChemBioChem, EarlyView.
A unique chemoenzymatic synthesis route toward (S)‐baclofen is presented, which highlights a hydroformylation and biocatalysis step toward the synthesis of such a challenging β‐chiral amino acid. The shown methodology exhibits high conversions and enantiomeric excess and is transferable to other β‐chiral amines and amino acids.
Feodor Belov, Hannah Bork, Luise Hänel, Manideep V. Kollipara, Matthias Höhne, Harald Gröger, Jan von Langermann   +6 more
wiley   +1 more source

Sex-associated differences in baseline urinary metabolites of healthy adults. [PDF]

, 2018
The biological basis for gender variability among disease states is not well established. There have been many prior efforts attempting to identify the unique urine metabolomic profiles associated with specific diseases.
Anger, Jennifer T, Eilber, Karyn S, Fan, Sili, Fiehn, Oliver, Kim, Jayoung, Shahid, Muhammad, Yeon, Austin   +6 more
core   +1 more source

Identifying the True Catalyst: A Mn(II) Salt versus Mn(II) Complexes in Epoxidation with m‐Chloroperbenzoic Acid

European Journal of Organic Chemistry, EarlyView.
During the investigation of the reactivity of three Mn complexes, Mn(ClO4)2 shows higher reactivity toward styrene epoxidation, indicating that ligand coordination inhibits the reactivity of the manganese center. Raman spectroscopy provides mechanistic insight: monitoring alkene epoxidation and consumption of the oxidant over time, the true nature of ...
Milica Savić, Aleksandra Mitrović, Božidar Čobeljić, Andrej Pevec, Matija Zlatar, Maja Gruden, Wesley R. Browne, Marika Di Berto Mancini   +7 more
wiley   +1 more source

Cinnamic Derivatives in Tuberculosis

, 2012
Tuberculosis (TB) is a threat to worldwide public health, mainly caused by Mycobacterium tuberculosis (M.tb.) bacteria species. Despite the availability of effective treatment, tuberculosis is responsible for more than three million deaths annually worldwide.
Damien Veau, Stefan Chassaing, Florence Bedos-Belval, Michel Baltas, Prithwiraj De   +4 more
openaire   +3 more sources

How Does Lagenaria siceraria (Bottle Gourd) Metabolome Compare to Cucumis sativus (Cucumber) F. Cucurbitaceae? A Multiplex Approach of HR-UPLC/MS/MS and GC/MS Using Molecular Networking and Chemometrics

Foods, 2023
Cucurbitaceae comprises 800 species, the majority of which are known for their nutritive, economic, and health-promoting effects. This study aims at the metabolome profiling of cucumber (Cucumis sativus) and bottle gourd (Lagenaria siceraria) fruits in a
Radwa H. El-Akad, Mohamed G. Sharaf El-Din, Mohamed A. Farag   +2 more
doaj   +1 more source

Decarboxylative Michael Additions of Substituted Malonic Acid Half‐Oxyesters to Methylidene Malonates

European Journal of Organic Chemistry, EarlyView.
Substituted malonic acid half oxyesters reacted with alkylidene malonates in a fast, efficient decarboxylative Michael addition, delivering adducts in high yields. The reaction occurred in bulk solvent, open to air, needing only a weak amine base as an organocatalyst to drive a mechanism involving addition prior to decarboxylation.
Marine Pinaud, Tania Xavier, Léa Lin, Erwan Le Gall, Marc Presset   +4 more
wiley   +1 more source

Therapeatic Application of Sodium Cinnamate [PDF]

The American Journal of the Medical Sciences, 1902
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openaire   +3 more sources