Results 21 to 30 of about 718,922 (361)

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

Plant roots sense soil compaction through restricted ethylene diffusion

open access: yesScience, 2021
Ethylene aplenty signals soil compaction It's tough to drive a spade through compacted soil, and plant roots seem to have the same problem when growing in compacted ground. Pandey et al.
Bipin K. Pandey   +15 more
semanticscholar   +1 more source

Synthesis of difluoromethylated allenes through trifunctionalization of 1,3-enynes

open access: yesNature Communications, 2020
Fluorinated or fluoroalkylated allenes are versatile building blocks for medicinal and material chemistry. Here, the authors show a regioselective trifunctionalization of 1,3-enynes proceeding through double C-F bond formation and concomitant ...
Munira Taj Muhammad   +9 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

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

Ethylene Signaling under Stressful Environments: Analyzing Collaborative Knowledge

open access: yesPlants, 2022
Ethylene is a gaseous plant growth hormone that regulates various plant developmental processes, ranging from seed germination to senescence. The mechanisms underlying ethylene biosynthesis and signaling involve multistep mechanisms representing ...
Mehar Fatma   +6 more
semanticscholar   +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

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

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

Ethylene supports colonization of plant roots by the mutualistic fungus Piriformospora indica [PDF]

open access: yes, 2012
The mutualistic basidiomycete Piriformospora indica colonizes roots of mono- and dicotyledonous plants, and thereby improves plant health and yield. Given the capability of P.
Jörg Durner   +39 more
core   +1 more source

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