Results 21 to 30 of about 435,455 (251)

Radical Decarboxylative Carbon–Nitrogen Bond Formation

open access: yesMolecules, 2023
The carbon–nitrogen bond is one of the most prevalent chemical bonds in natural and artificial molecules, as many naturally existing organic molecules, pharmaceuticals, agrochemicals, and functional materials contain at least one nitrogen atom.
Xiangting Li   +4 more
doaj   +1 more source

Ethylene signalling receptors and transcription factors over the grape berry development: gene expression profiling [PDF]

open access: yes, 2010
The ethylene signalling pathway has never been fully described in grapes. Regarded as a non-climacteric fruit, grape berry seems to ripen independently to ethylene, however 1-methylcyclopropene (1-MCP), a specific inhibitor of ethylene receptors has been
Chervin, Christian   +4 more
core   +1 more source

Easy access to medium-sized lactones through metal carbene migratory insertion enabled 1,4-palladium shift

open access: yesNature Communications, 2020
Transannular construction of medium-sized lactones is entropically unfavoured. Herein, the authors describe a strategy for valuable medium-sized lactone synthesis from available benzaldehydes by selective C-H bond functionalization via palladium carbene ...
Yinghua Yu   +5 more
doaj   +1 more source

Asymmetric radical carboesterification of dienes

open access: yesNature Communications, 2021
Stereocontrol of C–O bond formation from a carbon-based radical is very difficult due to the rapid inversion of the carbon radical. Here the authors present a method to form chiral esters from conjugated dienes with copper and chiral PyBox ligands ...
Xiaotao Zhu   +6 more
doaj   +1 more source

A dominant repressor version of the tomatoSl-ERF.B3gene confers ethylene hypersensitivity via feedback regulation of ethylene signaling and response components [PDF]

open access: yes, 2013
Ethylene Response Factors (ERFs) are downstream components of the ethylene signal transduction pathway, although their role in ethylene-dependent developmental processes remains poorly understood. As the ethylene-inducible tomato Sl-ERF.B3 has been shown
Kesari, Ravi   +9 more
core   +1 more source

Revealing the Iron-Catalyzed β-Methyl Scission of tert-Butoxyl Radicals via the Mechanistic Studies of Carboazidation of Alkenes

open access: yesMolecules, 2020
We describe here a mechanistic study of the iron-catalyzed carboazidation of alkenes involving an intriguing metal-assisted β-methyl scission process.
Mong-Feng Chiou   +4 more
doaj   +1 more source

The Introduction of the Radical Cascade Reaction into Polymer Chemistry: A One-Step Strategy for Synchronized Polymerization and Modification

open access: yesiScience, 2020
Summary: Polymerization and modification play central roles in polymer chemistry and are generally implemented in two steps, which suffer from the time-consuming two-step strategy and present considerable challenge for complete modification.
Nengbo Zhu   +7 more
doaj   +1 more source

Climacteric fruit ripening: Ethylene-dependent and independent regulation of ripening pathways in melon fruit [PDF]

open access: yes, 2008
Cantaloupe melons have a typical climacteric behaviour with ethylene playing a major role in the regulation of the ripening process and affecting the ripening rate.
Latché, Alain   +5 more
core   +1 more source

Poly Vinyl Chloride Additives and Applications - A Review

open access: yesJournal of Risk Analysis and Crisis Response (JRACR), 2022
A Pure polyvinyl chloride (PVC) is a white, brittle material and it is the third-largest polymers produced after polyethylene and polypropylene as 40 million tons of PVC are produced yearly.
Abdallah S. Elgharbawy
doaj   +1 more source

Response Mechanisms of “Hass” Avocado to Sequential 1–methylcyclopropene Applications at Different Maturity Stages during Cold Storage

open access: yesPlants, 2022
1–Methylcyclopropene (1–MCP) is used for extending the postharvest life of the avocado during storage. Evaluated the effect of 1–MCP application at different times after harvest, i.e., 0, 7, 14, and 21 d at 5 °C, to identify the threshold of the ethylene
Daniela Olivares   +7 more
doaj   +1 more source

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