• chemistry, HantzschWidman nomenclature, also called the extended HantzschWidman system (named for Arthur Rudolf Hantzsch and Karl Oskar Widman [sv; de])...
    8 KB (728 words) - 09:34, 31 August 2024
  • Thumbnail for Heterocyclic compound
    commercial applications, inorganic ring systems are mainly of theoretical interest. IUPAC recommends the Hantzsch-Widman nomenclature for naming heterocyclic...
    20 KB (1,019 words) - 10:03, 11 December 2024
  • Thumbnail for Pyridine
    S2CID 98654832. Powell, W. H. (1983). "Revision of the extended Hantzsch-Widman system of nomenclature for hetero mono-cycles" (PDF). Pure and Applied...
    76 KB (7,667 words) - 07:10, 20 December 2024
  • Thumbnail for Arsole
    compounds such as arsole is based on an extension of the HantzschWidman nomenclature system approved by IUPAC, as summarized below: Because of its similarity...
    13 KB (1,267 words) - 14:52, 17 November 2024
  • Thumbnail for Selenopyrylium
    selenium is substituted for the oxygen atom in pyrylium. In the Hantzsch-Widman system of nomenclature, it is called seleninium. This is the name used...
    6 KB (627 words) - 13:06, 23 January 2024
  • Thumbnail for Phosphetene
    phosphorus, ring opening, or ring expansion. According to the extended Hantzsch-Widman system of naming heterocyclic parent hydrides, the saturated four-membered...
    26 KB (2,186 words) - 20:52, 31 October 2024
  • Thumbnail for Telluropyrylium
    tellurium is substituted for the oxygen atom in pyrilium. In the Hantzsch-Widman system it is called tellurinium. This is the name used by Chemical Abstracts...
    5 KB (512 words) - 08:24, 14 April 2024
  • Thumbnail for Halonium ion
    electrophilic halogenation may be called haliranium ions, using the Hantzsch-Widman nomenclature system. The simplest halonium ions are of the structure H−+X−H (X...
    9 KB (1,070 words) - 18:06, 5 May 2024
  • sulfur, or oxygen) as part of the ring. Their names originate from the HantzschWidman nomenclature. The parent compounds are aromatic and have two double...
    5 KB (477 words) - 09:41, 11 December 2024
  • principle or Hammond postulate Hantzsch pyrrole synthesis Hantzsch dihydropyridine synthesis, Hantzsch pyridine synthesis Hantzsch pyridine synthesis, Gattermann–Skita...
    37 KB (3,428 words) - 16:27, 11 November 2024
  • Thumbnail for Cyclic compound
    and borazines, which contain only boron and nitrogen in the rings). HantzschWidman nomenclature is recommended by the IUPAC for naming heterocycles, but...
    28 KB (3,302 words) - 14:18, 13 November 2024
  • is trifluoromethylammonium. Chemistry portal Descriptor (chemistry) HantzschWidman nomenclature International Union of Biochemistry and Molecular Biology...
    40 KB (4,523 words) - 00:17, 12 December 2024
  • Functional class name, also known as a radicofunctional name Fusion name HantzschWidman nomenclature Multiplicative name Replacement name Substitutive name...
    27 KB (3,153 words) - 17:03, 18 December 2024
  • "Bicyclo [2.2.2]octa-2,5,7-triene (barrelene), a unique cyclic six electron pi system". Journal of the American Chemical Society. 82 (6): 1514–1515. doi:10.1021/ja01491a071...
    44 KB (1,916 words) - 07:59, 10 December 2024
  • Thumbnail for Benzodiazepine
    heterocyclic ring system (see figure to the right), which is a fusion between the benzene and diazepine ring systems. Under HantzschWidman nomenclature,...
    159 KB (16,665 words) - 01:37, 27 October 2024
  • monocyclic hydrides (i.e single rings consisting of one element): the HantzschWidman nomenclature (the method preferred for rings of size 3–10) "skeletal...
    37 KB (3,872 words) - 07:12, 10 May 2024
  • Thumbnail for List of nominees for the Nobel Prize in Chemistry
    April 2020. Retrieved 11 November 2020. "Nomination Archive – Arthur Hantzsch". NobelPrize.org. April 2020. Retrieved 11 November 2020. "Nomination Archive...
    358 KB (12,268 words) - 10:51, 20 December 2024