Hantzsch–Widman nomenclature, type of systematic chemical nomenclature for naming heterocyclic parent hydrides
Hantzsch–Widman nomenclature is named after the German chemist Arthur Hantzsch and the Swedish chemist Oskar Widman, who independently proposed similar methods for the systematic naming of heterocyclic compounds in 1887 and 1888 respectively.
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All of the prefixes end in "a": In Hantzsch–Widman nomenclature (but not in some other methods of naming heterocycles), the final "a" is elided when the prefix comes before a vowel.
International Code of Zoological Nomenclature | Binomial nomenclature | Nomenclature of monoclonal antibodies | International Nomenclature of Cosmetic Ingredients | binomial nomenclature | Battery nomenclature | Arthur Rudolf Hantzsch | Retroactive nomenclature | Nucleic acid nomenclature | Nomenclature | nomenclature | International Code of Nomenclature for algae, fungi, and plants | Hantzsch–Widman nomenclature | Hantzsch pyrrole synthesis | Hantzsch pyridine synthesis | Chemical nomenclature |
Having secured almost 15,000 marks from the Society of Friends of Nature Institution of Berlin, the Rudolf Virchow Foundation of Berlin, and King Frederick Augustus III of Saxony, Hantzsch was prepared to spend three years on Baffin Island.
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Bernhard Adolph Hantzsch (12 January 1875 – June 1911) was a German ornithologist, Arctic researcher, and writer, notable for his discovery of two Icelandic bird subspecies.
Hantzsch pyrrole synthesis, the chemical reaction of β-ketoesters with ammonia and α-haloketones to give substituted pyrroles
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Hantzsch pyridine synthesis, multi-component organic reaction between an aldehyde a β-keto ester and a nitrogen donor