Results 51 to 60 of about 835 (215)

A Synthesis of Functionalized Thiazoles and Pyrimidine-4(3H)-thiones from 1,1,3,3-Tetramethylguanidine, Acetylenic Esters, and Aryl Isothiocyanates

open access: yes, 2017
Aryl isothiocyanates react with dialkyl 2-{[bis(dimethylamino)methylene]amino}maleates, generated from 1,1,3,3-tetramethylguanidine and acetylenic esters, to afford 2-(dimethylamino)-1,3-thiazole derivatives, functionalized 2-(dimethylamino)-6-thioxo-1,6-
Mohammad Halvagar   +2 more
core   +1 more source

Excursion to the World of Heptacyclic Compounds Made of Azulenes and Acetylenedicarboxylates [PDF]

open access: yes, 2015
Azulenes and acetylenedicarboxylates react under acid catalysis (Brønsted or Lewis) and form (2aRS,8aSR)-2a,8a-dihydrocyclopenta[cd]azulene-1,2-dicarboxylates as intermediate products, which then dimerize by central bond-formation between C(2a1) and C(2 ...
Chen, Yi   +4 more
core   +1 more source

The malate–aspartate shuttle supports thermogenic lipid mobilization in brown adipocytes

open access: yesThe FEBS Journal, EarlyView.
Brown fat cells burn lipids within their mitochondria to generate heat. This process involves two energy “shuttles,” one of which is naturally blocked during heat production. We found that the second shuttle (MASh) is not required to generate heat. However, when MASh is disabled, the fatty acids meant for fuel are instead converted back into stored fat.
Michaela Veliova   +12 more
wiley   +1 more source

Arsenite methyltransferase 3 is required for mitochondrial function and hepatic lipid metabolism

open access: yesThe FEBS Journal, EarlyView.
AS3MT is a protein that helps the body process arsenic, a naturally occurring toxin found in water and soil. We discovered it also helps cells make and use energy properly. Without AS3MT, cells' mitochondria do not work well, leading to fatty liver and reduced activity. Increasing AS3MT in liver cells restores energy and protects against arsenic damage,
Patrice Delaney   +10 more
wiley   +1 more source

Binaphthol-Derived Bisphosphoric Acids Serve as Efficient Organocatalysts for Highly Enantioselective 1,3-Dipolar Cycloaddition of Azomethine Ylides to Electron-Deficient Olefins

open access: yes, 2016
A variety of chiral bisphosphoric acids derived from binaphthols have been evaluated for enantioselective 1,3-dipolar cycloaddition reactions, revealing that the feature of the linker in the catalysts exerted great impact on the stereoselectivity.
Long He (1696168)   +7 more
core   +3 more sources

Volatile Organic Compounds Emitted by Fungi Have Substantial Effects on Growth and Disease Resistance in Arabidopsis thaliana

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Volatile organic compounds (VOCs) emitted by certain fungi have previously been suggested to modulate plant development and their response to stresses. While some fungal species, such as Trichoderma harzianum, are known to produce VOCs, the production of VOCs in other phylogenetically divergent species, such as Mucor mucedo, was previously ...
Sara Yugueros   +7 more
wiley   +1 more source

Enantioselective Synthesis of α‑Heteroarylpyrrolidines by Copper-Catalyzed 1,3-Dipolar Cycloaddition of α‑Silylimines

open access: yes, 2016
α-Heteroarylpyrrolidines have been efficiently prepared via 1,3-dipolar cycloaddition between silylimines and activated olefins. In the presence of Cu­(CH3CN)4PF6/Walphos as catalytic system, high levels of enantioselectivity (up to ≥99% ee) and ...
María González-Esguevillas (1819633)   +4 more
core   +1 more source

Management of Azoospermia: A Systematic Approach

open access: yesThe Obstetrician &Gynaecologist, EarlyView.
ABSTRACT Key Content Work‐up of azoospermic men includes a detailed history, physical examination and investigations to find the underlying cause. Causes and management of azoospermia (pre‐testicular, testicular and post‐testicular) with case presentations.
Naimah Raza   +3 more
wiley   +1 more source

Traction suture fixation technique using a capsular tension ring fragment for severe lens displacement during cataract surgery in dogs

open access: yesVeterinary Ophthalmology, Volume 28, Issue 2, Page 197-206, March 2025.
Abstract Objectives To describe the traction suture fixation technique for severely displaced lenses (≥180°) using a capsular tension ring (CTR) fragment during cataract surgery in dogs, and to retrospectively investigate its clinical outcomes. Animals Studied Eight dogs (nine eyes). Procedures The medical records of dogs with severe lens displacement (
Shinya Fukumoto, Tomomi Minamoto
wiley   +1 more source

Placental mitochondrial metabolic adaptation maintains cellular energy balance in pregnancy complicated by gestational hypoxia

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Placental mitochondrial adaptation to gestational hypoxia. Hypoxic pregnancy in sheep increases placental insulin like growth factor 2 (IGF2) signalling (1), which is associated with a shift in capacity away from β‐oxidation (2) and complex I‐mediated respiration (3), while maintaining total oxidative phosphorylation capacity (4).
Wen Tong   +18 more
wiley   +1 more source

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