Results 51 to 60 of about 675,014 (180)

(E)-3-(2,4-Dimethoxyphenyl)-1-(3,4,5-trimethoxyphenyl)prop-2-en-1-one

Acta Crystallographica Section E, 2012
In the title chalcone derivative, C20H22O6, the dihedral angle between the mean planes of the benzene rings is 15.77 (6)°. The H atoms of the central C=C double bond are in a trans configuration. There are a number of C—H...O
Jianzhang Wu, Junyan Qiu, Xiaokai Wu, Shulin Yang, Yonggen Liu   +4 more
doaj   +1 more source

α,β‐Alkylation Reactions Catalyzed by Ruthenium Triphenylphosphine Complexes Bearing Substituted Pyridine–Quinoline Based Ligands

European Journal of Inorganic Chemistry, EarlyView.
A series of new air‐stable ruthenium(II) bis‐triphenylphosphine complexes comprising substituted pyridine–quinoline ligands have been developed via a one‐pot procedure. The new complexes successfully serve as scaffolds to promote catalytic CC bond formation, more precisely the α‐alkylation of ketones with primary alcohols, via the borrowing hydrogen ...
Nikolaos Zacharopoulos, Panagiotis‐Georgios Kanellopoulos, Evangelos Bakeas, Antigoni Cheilari, Gregor Schnakenburg, Athanassios Chrissanthopoulos, Athanassios Philippopoulos   +6 more
wiley   +1 more source

Neuroprotective Role of Transchalcone in Parkinson‘s Disease through AMP-activated Protein Kinase-mediated Signaling Pathway

Journal of Physiological Investigation
Parkinson’s disease (PD) is a gradually worsening neurodegenerative condition marked by the deterioration of dopaminergic neurons, motor dysfunction, and mitochondrial dysfunction. Trans-chalcone, a natural flavonoid, has shown promise in various disease
Yao Cheng, Shaik Althaf Hussain, Turki Mayudh Alrubie, Xiaomin Zhang   +3 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

University teaching of mass spectrometry as a key practical technique within the context of a fully integrated, spiral curriculum

Rapid Communications in Mass Spectrometry, EarlyView.
Rationale Mass spectrometry (MS) is introduced to high school students in the UK in many pre‐university course syllabi. As such, we have identified the use of MS as a key technique that should be taught practically to undergraduates from the outset of their studies.
Andrew F. Worrall, Craig D. Campbell, Megan O. Midson, Malcolm I. Stewart   +3 more
wiley   +1 more source

(2E,2′E)-1,1′-(1,4-Phenylene)bis[3-(3-chlorophenyl)prop-2-en-1-one]

IUCrData, 2017
The title bis-chalcone compound, C24H16Cl2O2, crystallizes with one half-molecule in the asymmetric unit. The molecule has crystallographic inversion symmetry and lies about an inversion centre at the centroid of the central benzene ring.
S. Rajendraprasad, C. S. Chidan Kumar, S. Chandraju, N. K. Lokanath, Ching Kheng Quah, S. Naveen, Muneer Abdoh   +6 more
doaj   +1 more source

Gaining insights into epigenetic memories through artificial intelligence and omics science in plants

Journal of Integrative Plant Biology, EarlyView.
This review explores how artificial intelligence and machine learning predict plant behavior in response to environmental stress by modeling molecular regulatory networks of plant stress responses. Their combined application with omics methods opens new avenues in understanding the functioning of plant memory and future plant memory‐based plant ...
Judit Dobránszki, Valya Vassileva, Dolores R. Agius, Panagiotis Nikolaou Moschou, Philippe Gallusci, Margot M.J. Berger, Dóra Farkas, Marcos Fernando Basso, Federico Martinelli   +8 more
wiley   +1 more source

Change Your Diet: How CO2, Plant Phenology and Genotype Alter Grapevine Quality and Affect Performance and Larval Transcriptome of an Insect Herbivore

Molecular Ecology, EarlyView.
ABSTRACT Herbivorous insects need to cope with changing host plant biochemistry caused by abiotic and biotic impacts, to meet their dietary requirements. Larvae of the multivoltine European grapevine moth Lobesia botrana, one of the main insect pests in viticulture, feed on both flowers and berries.
Christine Becker, Christof B. Steingass, Heiko Vogel, Annette Reineke   +3 more
wiley   +1 more source

(E)-1-(2-Aminophenyl)-3-(thiophen-2-yl)prop-2-en-1-one

Acta Crystallographica Section E, 2013
The molecule of the title heteroaryl chalcone derivative, C13H11NOS, exists in a trans-configuaration and is almost planar with a dihedral angle of 3.73 (8)° between the phenyl and thiophene rings. An intramolecular N—H...O hydrogen bond
Suchada Chantrapromma, Pumsak Ruanwas, Nawong Boonnak, Hoong-Kun Fun   +3 more
doaj   +1 more source

Identification of a hydroxycinnamoyl‐CoA double bond reductase (HDR) affirms multiple pathways for dihydrochalcone formation in apple

Plant Biotechnology Journal, EarlyView.
Summary Dihydrochalcones are secondary metabolites with manifold dietary and pharmaceutical properties, but with a yet unclear function in plants. The abundance of dihydrochalcones, particularly phloridzin, makes Malus ssp. unique in the plant kingdom. The gene(s)/enzyme(s) for the key reaction in phloridzin biosynthesis, the reduction in the C3‐bridge
Susan Schröpfer, Christian Haselmair‐Gosch, Christoph Böttcher, Christian Molitor, Jens Keilwagen, Lukas Eidenberger, Silvija Marinovic, Matthias Hackl, Andreas Spornberger, Benjamin Walliser, Christopher Schlosser, Karl Stich, Annette Rompel, Henryk Flachowsky, Heidi Halbwirth   +14 more
wiley   +1 more source