retenen.

Brit.

/ˈrɛtiːn/, U.S.

/ˈrɛˌtin/

Origin: A borrowing from Greek, combined with an English element. Etymons: Greek ῥητίνη , -ene comb. form.

Etymology: < ret- (in ancient Greek ῥητίνη resin: see retinite n.) + -ene comb. form. In sense 2 after German †Retèn (J. Fritzsche 1861, in Jrnl. f. prakt. Chem. 82 321).The earlier use in sense 1 alluded to in quot. 1862 has not been traced. N.E.D. (1908) gives the pronunciation as (retī·n) /rɛˈtiːn/.

Chemistry.

†1. = cumene n. Obsolete. rare.

ΚΠ

1862 W. Odling in Guy's Hosp. Rep. 8 282 I propose to reject altogether the use of the term cumyl..to denominate compounds of the 9-carbon aromatic group, and to revert to Pelletier and Walter's old names of retinyl or retyl for the radicle, and of retinene or retene for the hydrocarbon.

2. A crystalline aromatic hydrocarbon occurring in coal tar and as a product of the breakdown of conifer resins.Retene has a tricyclic molecule based on a phenanthrene ring system. Systematic name: 1-methyl-7-isopropylphenanthrene; C₁₈H₁₈.

ΘΚΠ

the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > benzene derivatives > other benzene derivatives

iodoxybenzene1865

retene1866

trimethylbenzene1868

quinol1871

paradichlorobenzene1876

coumarone1883

thiophene1883

antipyrin1884

thiotoluene1885

thioxylene1885

phthalaldehyde1886

trimesic acid1889

iodosobenzene1892

benzodiazepine1934

1866 H. Watts tr. L. Gmelin Hand-bk. Chem. XVII. 9 The remainder of the decoction is evaporated to dryness and treated with sulphide of carbon, which dissolves retene and other substances, leaving a red-brown acid resin.

1937 Thorpe's Dict. Appl. Chem. (ed. 4) I. 1/2 When dehydrogenated with sulphur it [sc. abietene] yields retene.

1996 B. R. T. Simoneit et al. in J. S. Levine Biomass Burning & Global Change I. xlviii. 510/2 Retene, a thermal alteration product from resin diterpenoids.., has been found in aerosols in Norway and Oregon.

This entry has been updated (OED Third Edition, March 2010; most recently modified version published online March 2022).

单词	retene
释义	retenen. Brit. /ˈrɛtiːn/, U.S. /ˈrɛˌtin/ Origin: A borrowing from Greek, combined with an English element. Etymons: Greek ῥητίνη , -ene comb. form. Etymology: < ret- (in ancient Greek ῥητίνη resin: see retinite n.) + -ene comb. form. In sense 2 after German †Retèn (J. Fritzsche 1861, in Jrnl. f. prakt. Chem. 82 321).The earlier use in sense 1 alluded to in quot. 1862 has not been traced. N.E.D. (1908) gives the pronunciation as (retī·n) /rɛˈtiːn/. Chemistry. †1. = cumene n. Obsolete. rare. ΚΠ 1862 W. Odling in Guy's Hosp. Rep. 8 282 I propose to reject altogether the use of the term cumyl..to denominate compounds of the 9-carbon aromatic group, and to revert to Pelletier and Walter's old names of retinyl or retyl for the radicle, and of retinene or retene for the hydrocarbon. 2. A crystalline aromatic hydrocarbon occurring in coal tar and as a product of the breakdown of conifer resins.Retene has a tricyclic molecule based on a phenanthrene ring system. Systematic name: 1-methyl-7-isopropylphenanthrene; C₁₈H₁₈. ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > benzene derivatives > other benzene derivatives iodoxybenzene1865 retene1866 trimethylbenzene1868 quinol1871 paradichlorobenzene1876 coumarone1883 thiophene1883 antipyrin1884 thiotoluene1885 thioxylene1885 phthalaldehyde1886 trimesic acid1889 iodosobenzene1892 benzodiazepine1934 1866 H. Watts tr. L. Gmelin Hand-bk. Chem. XVII. 9 The remainder of the decoction is evaporated to dryness and treated with sulphide of carbon, which dissolves retene and other substances, leaving a red-brown acid resin. 1937 Thorpe's Dict. Appl. Chem. (ed. 4) I. 1/2 When dehydrogenated with sulphur it [sc. abietene] yields retene. 1996 B. R. T. Simoneit et al. in J. S. Levine Biomass Burning & Global Change I. xlviii. 510/2 Retene, a thermal alteration product from resin diterpenoids.., has been found in aerosols in Norway and Oregon. This entry has been updated (OED Third Edition, March 2010; most recently modified version published online March 2022). < n.1862
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