Results 101 to 110 of about 48,393 (330)

Lactone Carboxylic Acids. IV. Reaction of Ethyl Chloroarylpyruvate with Ethyl Malonate [PDF]

open access: yes, 1967
The condensation of ethyl chloroarylpyruvate (Ⅰ) with ethyl malonate in the presence of sodium ethoxide afforded γ-aryl-α,β-dicarbethoxy-⊿(β),γ-butenolide.
Takeda, Akira   +2 more
core   +1 more source

Comparative proteomics analysis of root and nodule mitochondria of soybean

open access: yesPlant, Cell &Environment, EarlyView.
Abstract Legumes perform symbiotic nitrogen fixation through rhizobial bacteroids housed in specialised root nodules. The biochemical process is energy‐intensive and consumes a huge carbon source to generate sufficient reducing power. To maintain the symbiosis, malate is supplied by legume nodules to bacteroids as their major carbon and energy source ...
Wai‐Ching Sin   +4 more
wiley   +1 more source

Enantioselective isothiourea catalysed Michael-Michael-lactonisation cascade; synthesis of δ-lactones and 1,2,3,4-substituted cyclopentanes [PDF]

open access: yes, 2017
The authors thank the EPSRC (ERTR – grant code EP/J500549/1; ABF - grant code EP/J018139/1), the Spanish government for a FPU Fellowship and the University of Seville (V Plan Propio de Investigación) for financial support (PER).
Elías-Rodríguez, Pilar   +3 more
core   +1 more source

Synthesis of Nano-Crystalline Zr0.8Sn0.2TiO4 Powder by Choline-Chloride-Malonate Deep Eutectic Solvents [PDF]

open access: green, 2021
Qifeng Wang   +6 more
openalex   +1 more source

How Plants May Maintain Protein Homeostasis Under Rising Atmospheric CO2

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Vascular plants may employ several physiological mechanisms to stabilize their protein contents as atmospheric CO2 concentrations change over a day, year, decade, or century. One mechanism is that plants may rely more on soil ammonium as their nitrogen source when CO2 increases.
Arnold J. Bloom   +2 more
wiley   +1 more source

Iron-mediated Preparation of Vinylcyclopropanes. Scope, Mechanism, and Applications [PDF]

open access: yes, 2003
The addition of stabilized carbon nucleophiles to tricarbonyl(1-methoxycarbonylpentadienyl)iron(1+) cation (1a) proceeds via attack at C2 on the face of the ligand opposite the Fe(CO)3 group to generate tricarbonyl(pentenediyl)iron complexes 2. Oxidation
Cao, Yeyu   +3 more
core   +1 more source

Mitochondrial oxidative stress, calcium and dynamics in cardiac ischaemia‐reperfusion injury

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Heart attack causes ischaemia–reperfusion injury in cardiomyocytes. Mitochondria generate reactive oxygen species (ROS), leading to oxidative stress. High levels of mitochondrial calcium (Ca2+) activate the mitochondrial permeability transition pore (mPTP), and excess ROS levels can lower the Ca2+ required to activate the mPTP ...
Emily Rozich   +5 more
wiley   +1 more source

An Improved Synthesis of Homocitrate

open access: yesMolecules, 1998
Monoethyl malonate (1) and tert-butyl alcohol are esterified by catalysis with dicyclohexylcarbodiimide and 4-dimethylaminopyridine to yield ethyl t-butyl malonate (2).
Ji-Qing Xu, Zeng-Chun Li
doaj   +1 more source

ZZE-Configuration of chromophore ß-153 in C-phycocyanin from Mastigocladus laminosus [PDF]

open access: yes, 1987
The photochemistry of C-phycocyanin has been studied after denaturation in the dark. It shows an irreversible reaction which has characteristics of a Ζ,Ζ,Ε- to Z,Z,Z-isomerization of dihydrobilins. Its amplitude depends on the reaction conditions, with
Bode, W.   +7 more
core   +1 more source

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