Results 41 to 50 of about 103,268 (270)
Two-step synthesis of chiral fused tricyclic scaffolds from phenols via desymmetrization on nickel
Nature Communications, 2017 Tricyclic furanic compounds with multiple chiral centers are found in a variety of natural products. Here, the authors show a highly enantioselective nickel-catalyzed procedure to access tricyclic oxygen-containing scaffolds with five contiguous chiral ...
Ravindra Kumar +4 more
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Severe Amitriptillin Intoxication Treated with Intravenous Lipid Emulsion
Journal of Pediatric Emergency and Intensive Care Medicine, 2021 Intoxication with tricyclic antidepressant drugs causes serious toxic findings even at low doses. Despite common use of the antidepressant drugs, there are no randomized controlled trials about treatments in tricyclic antidepressant drug intoxication ...
Ayyüce Ünlü +4 more
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Acta Crystallographica Section E: Crystallographic Communications, 2021 The molecule of the title compound, C15H15Br2NO3, comprises a fused tricyclic system consisting of two five-membered rings (cyclopentane and tetrahydrofuran) and one six-membered ring (tetrahydropyridinone).
Dmitriy F. Mertsalov +6 more
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Structure, stability and electronic properties of tricycle type graphane [PDF]
, 2012 We propose a new allotrope of graphane, named as tricycle graphane,with a 4up/2down UUUDUD hydrogenation in each hexagonal carbon ring,which is different from previously proposed allotropes with UUDUUD(boat-1) and UUUUDD (boat-2) types of hydrogenation. Its stability and electronic structures are systematically studied using first-principles method. We
arxiv +1 more source
Forbidden Subgraphs in Connected Graphs [PDF]
, 2004 Given a set $\xi=\{H_1,H_2,...\}$ of connected non acyclic graphs, a $\xi$-free graph is one which does not contain any member of $% \xi$ as copy. Define the excess of a graph as the difference between its number of edges and its number of vertices. Let $
Ravelomanana, Vlady, Thimonier, Loys
core +4 more sources
Molecules, 2000 Reaction of enone (11) with the bifunctional Grignard reagent (7) in the presence of copper(I) bromide – dimethyl sulfide, followed by intramolecular alkylation of the resultant chloroketone (15) gave the tricyclic ketone (12). The tricyclic ketone (
Veljko Dragojlovic
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Ordering chemical graphs by Sombor indices and its applications [PDF]
arXiv, 2021 Topological indices are a class of numerical invariants that predict certain physical and chemical properties of molecules. Recently, two novel topological indices, named as Sombor index and reduced Sombor index, were introduced by Gutman, defined as $$SO(G)=\sum_{uv\in E(G)}\sqrt{d_{G}^{2}(u)+d_{G}^{2}(v)},$$ $$SO_{red}(G)=\sum_{uv\in E(G)}\sqrt{(d_{G}
arxiv
Sleep Dysfunction in Fibromyalgia and Therapeutic Approach Options [PDF]
, 2020 Fibromyalgia, characterised by persistent pain, sleep disturbance, fatigue and cognitive dysfunction, is a central sensitivity syndrome that also involves abnormality in peripheral generators and in the hypothalamic pituitary adrenal axis.
Lawson, Kim
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Organocatalytic Lewis base functionalisation of carboxylic acids, esters and anhydrides via C1-ammonium or azolium enolates [PDF]
, 2014 This tutorial review highlights the organocatalytic Lewis base functionalisation of carboxylic acids, esters and anhydrides via C1-ammonium/azolium enolates.
Morrill, Louis C., Smith, Andrew D.
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