cycloheptanen.

Brit.

/ˌsʌɪkləʊˈhɛpteɪn/, U.S.

/ˌsaɪkloʊˈhɛpˌteɪn/

Origin: Formed within English, by compounding; perhaps modelled on a German lexical item. Etymons: cyclo- comb. form, heptane n.

Etymology: < cyclo- comb. form + heptane n., perhaps after German Cycloheptan (1894 or earlier).

Chemistry.

A flammable liquid cyclic hydrocarbon used as a solvent and synthetic intermediate; (also) any substituted derivative of this compound. Cf. suberane n.The cycloheptane molecule is a non-planar seven-membered ring. Formula: C₇H₁₄.

ΚΠ

1897 Jrnl. Chem. Soc. 72 612 (heading) Derivatives of cycloheptane.

1943 Proc. Royal Soc. A. 181 215 The determination of the constituents of atropine and cocaine and the disclosure of their relation to cycloheptane.

1961 Jrnl. Amer. Chem. Soc. 83 4545/1 Two isomeric monosubstituted cycloheptanes could exist, partially pseudorotating through the conformations..but not interconvertible.

2006 J. M. Hornback Org. Chem. (Internat. Student ed.) vi. 201 The seven-membered ring compound cycloheptane has only a small amount of strain.

This is a new entry (OED Third Edition, December 2012; most recently modified version published online March 2022).

单词	cycloheptane
释义	cycloheptanen. Brit. /ˌsʌɪkləʊˈhɛpteɪn/, U.S. /ˌsaɪkloʊˈhɛpˌteɪn/ Origin: Formed within English, by compounding; perhaps modelled on a German lexical item. Etymons: cyclo- comb. form, heptane n. Etymology: < cyclo- comb. form + heptane n., perhaps after German Cycloheptan (1894 or earlier). Chemistry. A flammable liquid cyclic hydrocarbon used as a solvent and synthetic intermediate; (also) any substituted derivative of this compound. Cf. suberane n.The cycloheptane molecule is a non-planar seven-membered ring. Formula: C₇H₁₄. ΚΠ 1897 Jrnl. Chem. Soc. 72 612 (heading) Derivatives of cycloheptane. 1943 Proc. Royal Soc. A. 181 215 The determination of the constituents of atropine and cocaine and the disclosure of their relation to cycloheptane. 1961 Jrnl. Amer. Chem. Soc. 83 4545/1 Two isomeric monosubstituted cycloheptanes could exist, partially pseudorotating through the conformations..but not interconvertible. 2006 J. M. Hornback Org. Chem. (Internat. Student ed.) vi. 201 The seven-membered ring compound cycloheptane has only a small amount of strain. This is a new entry (OED Third Edition, December 2012; most recently modified version published online March 2022). < n.1897
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