Results 11 to 20 of about 1,089 (145)

Rhodium-Catalyzed Oxidative Annulation of 2- or 7-Arylindoles with Alkenes/Alkynes Using Molecular Oxygen as the Sole Oxidant Enabled by Quaternary Ammonium Salt

open access: yesMolecules, 2021
Developing an efficient catalytic system using molecular oxygen as the oxidant for rhodium-catalyzed cross-dehydrogenative coupling remains highly desirable.
Weihui Zhuang   +3 more
doaj   +1 more source

Ueber Phenanthridin [PDF]

open access: yesBerichte der deutschen chemischen Gesellschaft, 1889
n ...
Pictet, Amé, Ankersmit, H. J.
openaire   +3 more sources

Isometamidium chloride and homidium chloride fail to cure mice infected with Ethiopian Trypanosoma evansi type A and B. [PDF]

open access: yesPLoS Neglected Tropical Diseases, 2018
BACKGROUND:Trypanosoma evansi is mechanically transmitted by biting flies and affects camels, equines, and other domestic and wild animals in which it causes a disease called surra.
Gebrekrustos Mekonnen   +7 more
doaj   +1 more source

From Isocyanides to Iminonitriles via Silver-mediated Sequential Insertion of C(sp3)–H Bond

open access: yesiScience, 2019
Summary: Heterocycles are prevalent constituents of many marketing drugs and biologically active molecules to meet modern medical challenges. Isocyanide insertion into C(sp3)–H bonds is challenging especially for the construction of quaternary carbon ...
Huiwen Chi   +7 more
doaj   +1 more source

Synthesis of phenanthridines via palladium-catalyzed picolinamide-directed sequential C–H functionalization

open access: yesBeilstein Journal of Organic Chemistry, 2013
We report a new synthesis of phenanthridines based on palladium-catalyzed picolinamide-directed sequential C–H functionalization reactions starting from readily available benzylamine and aryl iodide precursors.
Ryan Pearson   +4 more
doaj   +1 more source

The phytogenic feed additive Sangrovit modulates dextran sulfate sodium-induced colitis in rats

open access: yesVeterinární Medicína, 2010
The alkaloids of Macleaya cordata (Papaveracae) are active components of the phytogenic feed additive Sangrovit. The present study was conducted to evaluate the effects of Sangrovit on dextran sulfate sodium (DSS)-induced colitis using rats as an ...
E. Vrublova   +9 more
doaj   +1 more source

Ueber das Phenanthridin [PDF]

open access: yesJustus Liebigs Annalen der Chemie, 1891
von H.
Pictet, Amé, Ankersmit, H. J.
openaire   +3 more sources

Water, Alcohols, Amines, and Amides as Formal Hydrogen‐Atom‐Transfer Reagents Through Activation With Redox‐Active Lewis Acids

open access: yesAngewandte Chemie International Edition, EarlyView.
Protic molecules containing strong O─H or N─H bonds typically resist hydrogen‐atom abstraction because of the high reactivity of the resulting heteroatom‐centered radicals. However, association of the protic molecules with redox‐active Lewis acids can provide powerful hydrogen‐atom donors or proton‐coupled‐electron‐transfer reagents.
Petra Vojáčková, Armido Studer
wiley   +1 more source

Recent Advances in Virus–Host Interactions, Antiviral Bioactive Compounds, and Breeding for Disease Resistance of Porcine Epidemic Diarrhea Virus

open access: yesAnimal Research and One Health, EarlyView.
Basic research on the PEDV infection cycle and virus–host interactions advances the development of anti‐PEDV drugs and disease‐resistant breeding and helps strengthen disease prevention and control while reducing economic losses in the swine industry.
Heyong Wu   +8 more
wiley   +1 more source

Retro‐Hetero‐Michael Addition Strategies in Organic Synthesis

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
In this review, synthetic approaches to carbo‐ and heterocyclic compounds, including natural products, published in the last 15 years (2011–2025) which have either relied upon or included a retro‐hetero‐Michael addition step at any stage are discussed.
Dina Scarpi, Ernesto G. Occhiato
wiley   +1 more source

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