Results 11 to 20 of about 5,582 (280)

Electronic state spectroscopy of C2Cl4 [PDF]

open access: yes, 2009
The VUV spectrum of C2Cl4 is reported in the energy range 3.8-10.8 eV (325-115 nm). Several photoabsorption features are observed for the first time, including a very weak low-lying band which is provisionally attributed to a π → π* triplet transition ...
Barc, B.   +5 more
core   +1 more source

Synthesis and styrene copolymerization of novel trisubstituted ethylenes: 3. Alkoxy ring-substituted isopropyl 2-cyano-3-phenyl-2-propenoates

open access: yesDesigned Monomers and Polymers, 2018
Novel trisubstituted ethylenes, alkoxy ring-substituted isopropyl 2-cyano-3-phenyl-2-propenoates, RPhCH = C(CN)CO2CH(CH3)2 (where R is 2-methoxy, 3-methoxy, 4-methoxy, 2-ethoxy, 3-ethoxy, 4-ethoxy, 4-propoxy, 4-butoxy, 4-hexyloxy) were prepared and ...
Gregory B. Kharas   +11 more
doaj   +1 more source

Roles for jasmonate- and ethylene- induced transcription factors in the ability of Arabidopsis to respond differentially to damage caused by two insect herbivores

open access: yesFrontiers in Plant Science, 2014
Plant responses to insects and wounding involve substantial transcriptional reprogramming that integrates hormonal, metabolic, and physiological events.
Erin MacNeal Rehrig   +3 more
doaj   +1 more source

Integrating nitric oxide into salicylic acid and jasmonic acid/ ethylene plant defence pathways.

open access: yesFrontiers in Plant Science, 2013
Plant defence against pests and pathogens is known to be conferred by either salicylic acid (SA) or jasmonic acid (JA)/ethylene (ET) pathways, depending on infection or herbivore-grazing strategy.
Luis A.J. Mur   +4 more
doaj   +1 more source

Ethylene modulates sphingolipid synthesis in Arabidopsis

open access: yesFrontiers in Plant Science, 2015
Sphingolipids have essential structural and bioactive functions in membranes and in signaling. However, how plants regulate sphingolipid biosynthesis in the response to stress remains unclear.
Jian-xin eWu   +4 more
doaj   +1 more source

Methanogenic and perchloroethylene-dechlorinating activity of anaerobic granular sludge [PDF]

open access: yes, 1998
The biodegradation and toxicity of tetrachloroethylene (C2Cl4) and trichloroethylene (C2HCl3) were studied with different anaerobic enrichment cultures using the following electron donors: acetate, propionate, butyrate, methanol, formate and hydrogen ...
Bhatnagar, Lakshmi   +2 more
core   +2 more sources

Conceptual DFT study based on the characterization of the local electrophilicity and nucleophilicity for intramolecular Diels-Alder reaction of the trans isomers of 4-[(4E)-4,6-heptadien-1-yl]-2-cyclohepten-1-one [PDF]

open access: yesJournal of the Serbian Chemical Society
One of the most powerful methods for the rapid synthesis and formation of complex polycyclic molecules with biological interest involves the use of Diels–Alder (DA) reaction especially its intramolecular variant.
Temer Imane   +2 more
doaj   +1 more source

Synthesis and vinyl benzene copolymerization of novel trisubstituted ethylenes: 15. Halogen and methoxy ring-substituted isopropyl 2-cyano-3-phenyl-2-propenoates

open access: yesDesigned Monomers and Polymers, 2020
Condensation of isopropyl cyanoacetate and substituted benzoic aldehydes resulted in formation of novel isopropyl esters of 2-cyano-3-phenyl-2-propenoic acid, RPhCH = C(CN)CO2CH(CH3)2 (where R is 2,3,4-trimethoxy, 2,4,5-trimethoxy, 2,4,6-trimethoxy, 3 ...
Gregory B. Kharas   +10 more
doaj   +1 more source

On the reduction of 4-oxo-4h-benzopyran-3-carbaldehydes : global and local electrophilicity patterns [PDF]

open access: yes, 2004
The theoretical global and local electrophilicity patterns of substituted and chelated 4-oxo-4H-benzopyran-3-carbaldehydes (formylchromones) have been evaluated using the electrophilicity index proposed by Parr et al [J. Am. Chem. Soc. 1999, 121, 1922].
Araya Maturana, Ramiro   +3 more
core   +2 more sources

Heterologous over-expression of ACC SYNTHASE8 (ACS8) in Populus tremula x P. alba clone 717-1B4 results in elevated levels of ethylene and induces stem dwarfism and reduced leaf size through separate genetic pathways

open access: yesFrontiers in Plant Science, 2014
Plant height is an important agronomic and horticultural trait that impacts plant productivity, durability and esthetic appeal. A number of the plant hormones such as gibberellic acid (GA), auxin and ethylene have been linked to control of plant ...
Jonathan Michael Plett   +4 more
doaj   +1 more source

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