arỹnė sf. (2) arimas, dirva: Vis ariu, vis ariu, vis arỹnėn einu – juodas mano pūdymėlis, už visus juodžiausias (d.) Vrn.

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  • Aryne — In chemistry, an aryne is an uncharged reactive intermediate derived from an aromatic system by removal of two ortho substituents, leaving two orbitals with two electrons distributed between them.[1] [2]. In analogy with carbenes and nitrenes, an …   Wikipedia

  • Aryne — Structures d aryne. En chimie, un aryne est un intermédiaire neutre qui dérive d un arène par abstraction de deux substituants en ortho, laissant 2 orbitales avec deux électrons partagés entre eux[1] …   Wikipédia en Français

  • aryne — noun any hydrocarbon, normally a transient species, derived from an arene by removal of two hydrogen atoms from adjacent carbon atoms, and thus possessing a formal triple bond; the simplest is benzyne See Also: heteroaryne …   Wiktionary

  • In-Methylcyclophane — In Methylcyclophanes are organic compounds and members of a larger family of cyclophanes. These compounds only exist in the laboratory and help to explain how chemical bonds in molecules adapt to strain. In methylcyclophanes in particular have a… …   Wikipedia

  • Radical-nucleophilic aromatic substitution — or SRN1 in organic chemistry is a type of substitution reaction in which a certain substituent on an aromatic compound is replaced by a nucleophile through an intermediary free radical species:The substituent X is a halide and nucleophiles can be …   Wikipedia

  • Didehydrobenzen — Ein Arin ist ein ungeladenes, reaktives Zwischenprodukt, derivatisiert aus einem aromatischen System, in dem zwei orthoständige Substituenten abgespalten werden und dabei zwei Atomorbitale mit zwei Elektronen, die auf beide verteilt sind,… …   Deutsch Wikipedia

  • Isotopic labeling — (or isotopic labelling) is a technique for tracking the passage of a sample of substance through a system. The substance is labeled by including unusual isotopes in its chemical composition. If these unusual isotopes are later detected in a… …   Wikipedia

  • 1,2-rearrangement — A 1,2 rearrangement or 1,2 migration or 1,2 shift or Whitmore 1,2 shift cite journal | title = The common basis of molecular rearrangements | first = Frank C. | last = Whitmore | journal = J. Am. Chem. Soc. | date = 1932 | volume = 54 | issue = 8 …   Wikipedia

  • Arene substitution patterns — are part of organic chemistry IUPAC nomenclature and pinpoint the position of substituents other than hydrogen in relation to each other on an aromatic hydrocarbon. Contents 1 Ortho, meta, and para substitution 2 Ipso, meso, and peri substitution …   Wikipedia

  • Pyramidal alkene — Pyramidal alkenes are alkenes in which the two carbon atoms making up the double bond are not coplanar with their four substituents Ref|. This deformation from a trigonal planar geometry to a tetrahedral molecular geometry is the result of angle… …   Wikipedia