Results 111 to 120 of about 94,849 (289)

Dearomatization with Axial‐to‐Central Chirality Conversion

European Journal of Organic Chemistry, EarlyView.
Atropisomers are exciting synthetic targets with unique properties, which find applications in many fields of chemistry. However, considering them as substrates is not very frequent, notably in the context of dearomatization reaction. We wish to discuss the different strategies for the dearomatization of aromatic atropisomers with axial‐to‐central ...
Morgane Mando, Clément Lemaitre, Thierry Constantieux, Xavier Bugaut   +3 more
wiley   +1 more source

Responses of Biennial Sweetclovers of Diverse Latitudinal Adaptation to Various Management Procedures in Alaska [PDF]

, 1994
This report summarizes eight experiments with sweetclover (Melilotus species). Objectives were (a) determine responses of numerous cultivars and strains, representing a wide range of latitudinal adaptation, to various management procedures, (b ...
Klebesadel, Leslie J.
core  

Hofmann Degradation of Asparagine and Glutamine as an Efficient Approach for the Synthesis of Derivatized Lysine Homologs

European Journal of Organic Chemistry, EarlyView.
A practical and scalable route to C1 and C2 lysine homologs has been developed using Hofmann degradation of N‐protected L‐asparagine and L‐glutamine as the key step. These short‐tether scaffolds enable efficient synthesis of diverse Fmoc‐protected noncanonical amino acids (ncAAs) bearing donor, acceptor, redox‐active, and fluorescent residues.
Adelaide R. Mashweu, François J. De Beer, Jolien Bertouille, Steven Ballet, Charlotte Martin, Ulrich Hennecke, Charlene Marais, Vladimir A. Azov   +7 more
wiley   +1 more source

Design, Synthesis, and Photophysical Studies of Functionalized Polyaromatic Isonitriles as Visible Light Photoredox Catalysts

European Journal of Organic Chemistry, EarlyView.
A new series of structurally rich polyaromatic isonitriles is presented as photoredox catalysts. Their photophysical properties are investigated by UV–Vis absorption and fluorescence measurements, combined with experimental and theoretical studies to evaluate both ground‐ and excited‐state redox properties.
Cristina Martini, Camilla Russo, Jussara Amato, Carmine Volpe, Francesca Brunelli, Laurence Grimaud, Maxime R. Vitale, Greta Donati, Andrea Basso, Mariateresa Giustiniano   +9 more
wiley   +1 more source

Fermentation‐Induced Modulation of Polyphenolic Contents and Medicinal Activities in Annona squamosa Seeds

Food Chemistry International, EarlyView.
The study compared the medicinal activities of polyphenols from fermented and unfermented seeds of Annona squamosa. The polyphenols were extracted and subjected to standard analysis. The major phenolic components of the fermented polyphenols and the unfermented polyphenols were found to be 4‐hydroxybenzoic and 4‐hydroxyphenylacetic acid, respectively ...
Shola Hezekiah Awojide, Abayomi Gideon Adeyemo, Christianah Dare, Oluseye Oladapo Abiona, Adedayo Olubunmi Adeboye, Omolara Oladipo‐Olalekan, Aminat Adebola Adeyemo, Yemisi Elizabeth Asibor, Emmanuel Oluwafemi Adeniyi, Bunmi Regina Bankole, Ezekiel Olumide Fadunmade   +10 more
wiley   +1 more source

Noni (Morinda citrifolia) Seed Oil: Phytochemical Composition, Bioactivity, and Emerging Applications in Food and Health

Food Chemistry International, EarlyView.
Noni seed oil from Morinda citrifolia, highlighting its bioactive composition, conventional and green extraction methods, and major stability challenges. Encapsulation strategies improve oxidative stability and bioavailability, along with potential applications in functional foods and cosmetics, and key barriers to large‐scale commercialization ...
Sumidha Palanisamy, Kanimozhi Viswanathan, Pavithra Radhakrishnan, Sonali Lini, Sukumar Muthusamy   +4 more
wiley   +1 more source

A Comprehensive Review on Nutrition, Phytochemistry, Pharmacology and Food Application Perspectives of Bioactive Rich Superfruits

Future Postharvest and Food, EarlyView.
The review critically evaluated and compared the selected superfruit phytochemistry, their bioactive composition and the key health benefits majorly emphasizing the antioxidant potential. It has highlighted the translational challenges in formulating functional foods by addressing the issues related to delivery system, bioavailability mechanism and the
Sharath Kumar Nagaraja, Javid Iqbal Mir, Mahendra Kumar Verma, Aamir Hussain Dar   +3 more
wiley   +1 more source

Coumarin derivatives as inhibitors against monoamine oxidase: structure-activity relationships and inhibitory mechanisms

Acta Materia Medica
Monoamine oxidase (MAO) is a useful target in the treatment of neurodegenerative diseases and depressive disorders. Understanding the structure-activity relationship (SAR) and mechanisms underlying MAO inhibitors is crucial but challenging.
Jie Sun, Leizhi Xu, Qiusha Pan, Pu Wang, Qingguang Zhang, Ping Wang, Yangliu Xia   +6 more
doaj   +1 more source

Study of Zn(II)-coumarin complex by electrochemical method with increased anticoagulant potency

Reviews in Analytical Chemistry, 2011
The formation of complexes of coumarin and Zn(II) was studied in aqueous media at pH 8.2±0.1 by polarography and spectroscopy. The polarogram indicated formation of complexes between coumarin and Zn(II).
Choure Rakesh, Vaidya Neelam, Pitre Krishna Sadashiv   +2 more
doaj   +1 more source

Nuclear magnetic resonance spectroscopy: Abnormal splitting of ethyl groups due to molecular asymmetry [PDF]

, 1961
Nuclear magnetic resonance (n.m.r.) spectroscopy provides an excellent means for qualitative identification of ethyl groups by use of the familiar three-four pattern of spin-spin splitting (1).
Davis, Donald R., Nagarajan, K., Roberts, John D., Shafer, Paul R., Vogel, Martin   +4 more
core