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单词 quinolizine
释义

quinolizinen.

Brit. /kwᵻˈnɒlᵻziːn/, U.S. /kwəˈnɑləˌzin/
Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: quinoline n., azo- comb. form.
Etymology: < quinoline n. with inserted iz- (representing azo- comb. form), after German Chinolizin (M. Scholtz & W. Fraude 1913, in Berichte der Deutsch. Chem. Ges. 46 1072).
Chemistry.
A hypothetical heterocyclic compound of formula C9H9N, whose molecule contains two six-membered rings sharing a nitrogen and a carbon atom; any of numerous (known) compounds whose molecules contain such a ring system in substituted or combined form. Frequently attributive.A number of isomeric structures are possible for C9H9N.
ΚΠ
1913 Jrnl. Chem. Soc. 104 i. 515 On account of its relationship to quinoline, the parent ring system..is termed quinolizine.
1935 C. Ellis Chem. Synthetic Resins II. xl. 850 The yellow quinolizine compound will pass over into a red modification.
1954 Chem. Rev. 54 1039 A surprising feature in the chemistry of the quinolizines is the fact that the parent compound quinolizine itself is unknown.
1965 Acta Crystallographica 18 1039/2 The indole portion..is fused to a quinolizine ring system which is substituted on adjacent carbon atoms with ethyl and methyl β-methoxyacrylyl groups.
2000 J. A. Joule & K. Mills Heterocyclic Chem. (ed. 4) xxv. 498 Quinolizine derivatives are usually prepared by cyclisations onto the nitrogen in a precursor pyridine.
This is a new entry (OED Third Edition, December 2007; most recently modified version published online March 2022).
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n.1913
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