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单词 piperidine
释义

piperidinen.

Brit. /pᵻˈpɛrᵻdiːn/, /pᵻˈpɛrᵻdɪn/, /pʌɪˈpɛrᵻdiːn/, /pʌɪˈpɛrᵻdɪn/, U.S. /pəˈpɛrəˌdin/, /paɪˈpɛrəˌdin/, /paɪˈpɛrəd(ə)n/, /pəˈpɛrəd(ə)n/
Origin: A borrowing from French. Etymon: French piperidine.
Etymology: < French piperidine (A. Cahours 1853, in Ann. de chim. et de physique 38 78) < classical Latin piper pepper n. + French -ide -ide suffix + -ine -ine suffix5.
Chemistry.
A strongly basic liquid with an unpleasant odour whose molecule is a saturated six-membered ring, (CH2)5NH.
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the world > matter > chemistry > organic chemistry > organic compounds > [noun] > heterocyclic compounds > other heterocyclic compounds
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1854 Jrnl. Chem. Soc. 6 175 (heading) On piperidine, a new alkali derived from piperine.
1881 H. Watts Dict. Chem. VIII. 1699 R. Buchheim..obtained a crystalline substance, pyrethrin, which melted at the heat of the body, and was resolved by alcoholic potash into pyrethric acid and piperidine.
1938 G. H. Richter Textbk. Org. Chem. xvi. 289 The reaction takes place in the presence of primary and secondary amines, especially diethylamine or piperidine.
1964 N. G. Clark Mod. Org. Chem. xxiii. 470 On heating a pyridine solution of the aldehyde with malonic acid in presence of piperidine (catalyst), condensation and decarboxylation occur, and a cinnamic acid is produced.
1990 Independent 5 Feb. 15/3 Piperidine is an integral part of Angel Dust, more correctly known as phencyclidine.
This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).
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n.1854
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