Results 91 to 100 of about 6,524 (258)

Matsuda–Heck reaction with arenediazonium tosylates in water

open access: yesBeilstein Journal of Organic Chemistry, 2015
An environmentally friendly Matsuda–Heck reaction with arenediazonium tosylates has been developed for the first time. A range of alkenes was arylated in good to quantitative yields in water.
Ksenia V. Kutonova   +4 more
doaj   +1 more source

Convergent Evolution and De Novo Reconstitution of Apiin Biosynthesis

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Apiin, an active flavonoid apioside, occurs in phylogenetically distant plants, such as parsley and chilli pepper (Capsicum annuum L.). Its sporadic distribution suggests the existence of convergent apiin biosynthesis; however, the molecular mechanisms underlying this convergence remain unclear.
Zhen Xu   +3 more
wiley   +1 more source

Durable low surface-energy surfaces [PDF]

open access: yes, 1993
A formulation for forming a low surface-energy surface on a substrate having (i) a fluoroalkyl silane having a low surface energy part, (ii) a liquid crystal silane operable for enhancing the orientation of the molecules of the fluoroalkyl silane and for
Hickey, Gregory H.   +2 more
core   +1 more source

3‐Methyl‐1‐Butanol Enhances Postharvest Resistance of Red Grapes to Botrytis cinerea by Activating Phenylpropanoid Metabolism and Antioxidant Defences

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Grey mould, caused by Botrytis cinerea, is a significant postharvest disease leading to substantial economic losses in the grape industry. This study investigated the regulatory mechanism of 3‐methyl‐1‐butanol (3M1B), a yeast volatile substance, on B. cinerea resistance in red grapes (Vitis vinifera L.).
Shunjie Zhai   +7 more
wiley   +1 more source

Diazirines Beyond Photoaffinity Labeling: A Comprehensive Overview of Applications in Biological Sciences, Materials Chemistry, and NMR‐Spectroscopy

open access: yesAngewandte Chemie, Volume 138, Issue 4, 22 January 2026.
Diazirines are three‐membered, nitrogen‐containing heterocycles that decompose under light or heat to generate carbenes. For the past two decades, they have served mainly as minimally invasive tags in photoaffinity labeling (PAL). More recently, their value as versatile carbene precursors has been recognized.
Dominik Schnalzer   +4 more
wiley   +2 more sources

Palladium-acetate catalyst for regioselective direct arylation at C2 of 3-furanyl or 3-thiophenyl acrylates with inhibition of Heck type reaction

open access: yes, 2013
International audiencePd(OAc)2/KOAc was found to be an efficient catalytic system for the direct arylation of thiophene and furan derivatives bearing an acrylate at C3.
Bruneau, Christian   +3 more
core   +3 more sources

Isolation of green coffee chlorogenic acids using activated carbon [PDF]

open access: yes, 2014
Chlorogenic acids, which are interesting natural antioxidants widespread in the plant kingdom, were extracted and purified from Mexican green coffee beans (Coffea arabica) using different methods.
Alfaro, Gerardo Valerio   +5 more
core   +4 more sources

Elucidating the genetic basis of antioxidant status in lettuce (Lactuca sativa). [PDF]

open access: yes, 2015
A diet rich in phytonutrients from fruit and vegetables has been acknowledged to afford protection against a range of human diseases, but many of the most popular vegetables are low in phytonutrients. Wild relatives of crops may contain allelic variation
Biggi, Gaia F   +10 more
core   +1 more source

WRKY Transcription Factors: Integral Regulators of Defence Responses to Biotic Stress in Crops

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Crops are continually challenged by biotic stresses, including fungal, bacterial and viral pathogens and insect pests, which cause substantial yield and quality losses worldwide. WRKY transcription factors constitute a plant‐specific and functionally diverse family that is central to immune regulation.
Dongjiao Wang   +8 more
wiley   +1 more source

SYNTHESIS OF POLYACETYLENES CONTAINING CINNAMATE AND DERIVED CINNAMATE

open access: yesRasayan Journal of Chemistry, 2021
This research aimed to investigate the production of polyacetylenes with cinnamate and its derivatives. The polymerization of (S)-N-(1-oxo-1-(prop-2-ynylamino)propan-2-yl) cinnamamide (1) and (S,E)-N-(1-oxo-1-(prop-2- ynylamino)propan-2-yl)-3-(3,4,5-trimethoxyphenyl)acrylamide (2), using the catalyst (nbd)Rh+ [ɳ6-C6H5B - (C6H5)3], generated ...
openaire   +1 more source

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