phoronen.

Brit.

/ˈfɔːrəʊn/,

/fəˈrəʊn/, U.S.

/ˈfɔˌroʊn/,

/fəˈroʊn/

Forms: 1800s– phoron, 1800s– phorone.

Origin: A borrowing from French. Etymon: French phorone.

Etymology: < French phorone (C. Gerhardt & Liès-Bodart 1849, in Comptes rendus mensuels de travaux chimiques 4 385) < -phor- (in post-classical Latin camphora camphor n.) + French -one -one suffix). Compare German Phoron (1849, in a review of Gerhardt's paper).

Chemistry.

†1. A white crystalline cyclic ketone, originally obtained from camphoric acid; 2-methyl-5-isopropylidene-cyclopentanone, C₉H₁₄O. Also camphor-phorone. Also called camphorone. Obsolete.

ΚΠ

1852 H. B. Jones & A. W. Hoffman Fownes's Man. Elem. Chem. (ed. 4) iii. 600 When camphorate of lime is submitted to distillation, it yields a volatil oil..similar to acetone or benzophenone. This substance, phorone, contains C₉H₇O or C₁₈H₁₄O₂.

1869 R. Bridges Fownes's Man. Elem. Chem. (ed. 10) 664 Calcium camphorate when distilled yields a volatile oil consisting of phorone.., the ketone of camphoric acid.

1877 H. Watts Fownes's Man. Chem. (ed. 12) 602 The calcium salt [of camphoric acid] is resolved by heat into carbonate and camphor-phorone.., isomeric with phorone from acetone.

2. A yellowish-green crystalline ketone, isomeric with camphorone (see sense 1), obtained by a condensation reaction of acetone; 2,6-dimethyl-2,5-heptadien-4-one, (CH₃)₂C=CHCOCH=C(CH₃)₂.

ΚΠ

1868 Proc. Royal Soc. 1867–8 16 367 When acetone is saturated with hydrochloric acid, several condensed compounds are formed... I prepared the two most important of these compounds in a state of purity, namely oxide of mesityle and phoron.

1877 H. Watts Fownes's Man. Chem. (ed. 12) 263 Phorone, C₉H₁₄O.

1922 J. J. Sudborough Bernthsen's Text-bk. Org. Chem. (new ed.) v. 141 So is acetone, by the action of many reagents..converted, with elimination of water, into..phorone, C₉H₁₄O, or mesitylene.

1939 Proc. National Acad. Sci. U.S.A. 25 579 For substances such as..benzophenone, phorone, etc., in which the carbonyl bond is conjugated with an unsaturated or aromatic group, resonance with other structures occurs.

1998 Mutation Res. 397 37 In this paper, we tested the hypothesis whether a pretreatment with phorone, a well-known intracellular glutathione depleter, would enhance the germ cell cytotoxicity of diepoxybutane.

This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).

单词	phorone
释义	phoronen. Brit. /ˈfɔːrəʊn/, /fəˈrəʊn/, U.S. /ˈfɔˌroʊn/, /fəˈroʊn/ Forms: 1800s– phoron, 1800s– phorone. Origin: A borrowing from French. Etymon: French phorone. Etymology: < French phorone (C. Gerhardt & Liès-Bodart 1849, in Comptes rendus mensuels de travaux chimiques 4 385) < -phor- (in post-classical Latin camphora camphor n.) + French -one -one suffix). Compare German Phoron (1849, in a review of Gerhardt's paper). Chemistry. †1. A white crystalline cyclic ketone, originally obtained from camphoric acid; 2-methyl-5-isopropylidene-cyclopentanone, C₉H₁₄O. Also camphor-phorone. Also called camphorone. Obsolete. ΚΠ 1852 H. B. Jones & A. W. Hoffman Fownes's Man. Elem. Chem. (ed. 4) iii. 600 When camphorate of lime is submitted to distillation, it yields a volatil oil..similar to acetone or benzophenone. This substance, phorone, contains C₉H₇O or C₁₈H₁₄O₂. 1869 R. Bridges Fownes's Man. Elem. Chem. (ed. 10) 664 Calcium camphorate when distilled yields a volatile oil consisting of phorone.., the ketone of camphoric acid. 1877 H. Watts Fownes's Man. Chem. (ed. 12) 602 The calcium salt [of camphoric acid] is resolved by heat into carbonate and camphor-phorone.., isomeric with phorone from acetone. 2. A yellowish-green crystalline ketone, isomeric with camphorone (see sense 1), obtained by a condensation reaction of acetone; 2,6-dimethyl-2,5-heptadien-4-one, (CH₃)₂C=CHCOCH=C(CH₃)₂. ΚΠ 1868 Proc. Royal Soc. 1867–8 16 367 When acetone is saturated with hydrochloric acid, several condensed compounds are formed... I prepared the two most important of these compounds in a state of purity, namely oxide of mesityle and phoron. 1877 H. Watts Fownes's Man. Chem. (ed. 12) 263 Phorone, C₉H₁₄O. 1922 J. J. Sudborough Bernthsen's Text-bk. Org. Chem. (new ed.) v. 141 So is acetone, by the action of many reagents..converted, with elimination of water, into..phorone, C₉H₁₄O, or mesitylene. 1939 Proc. National Acad. Sci. U.S.A. 25 579 For substances such as..benzophenone, phorone, etc., in which the carbonyl bond is conjugated with an unsaturated or aromatic group, resonance with other structures occurs. 1998 Mutation Res. 397 37 In this paper, we tested the hypothesis whether a pretreatment with phorone, a well-known intracellular glutathione depleter, would enhance the germ cell cytotoxicity of diepoxybutane. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < n.1852
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