quinoxalinen.

Brit.

/kwᵻˈnɒksəliːn/, U.S.

/kwəˈnɑksəˌlin/

Forms: 1800s– quinoxaline, 1900s– quinoxalin.

Origin: A borrowing from German. Etymon: German Chinoxalin.

Etymology: < German Chinoxalin (O. Hinsberg 1884, in Berichte der Deutsch. Chem. Ges. 17 319) < Chin- (in Chinolin quinoline n.) + -oxal (in Glyoxal glyoxal n.) + -in -ine suffix⁵, so called on account of its structural similarity to quinoline and its preparation from glyoxal.

Chemistry.

A weakly basic, crystalline, heterocyclic compound first prepared by reaction of glyoxal and o-phenylenediamine and used in organic synthesis; (also) any substituted derivative of this.Quinoxaline has a bicyclic structure formed from fused benzene and pyrazine rings. Formula: C₈H₆N₂.

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic compounds > [noun] > heterocyclic compounds > other heterocyclic compounds

alloxan1839

piperidine1854

valerin1866

acridine1870

piperidia1871

kairoline1883

quinoxaline1884

pyrimidine1885

pyrazolone1887

quinazoline1887

pyrazine1888

acridone1892

phthalazine1893

pyridazine1894

nitron1906

pyrrolizidine1939

1884 Jrnl. Chem. Soc. 46 1052 He [sc. Hinsberg]..proposes to call this series of compounds quinoxalines.

1926 H. G. Rule tr. J. Schmidt Text-bk. Org. Chem. 700 Quinoxalines..are weakly basic compounds, which may be reduced to hydro-quinoxalines, but are stable towards oxidising agents.

1951 I. L. Finar Org. Chem. x. 189 It [sc. glyoxal]..combines with o-phenylenediamines to form quinoxalines..; e.g., with o-phenylenediamine it forms quinoxaline itself.

1974 Nature 20 Dec. 654/1 The quinoxaline chromophores of echinomycin are similar in size to the quinoline chromophore of chloroquine, which is known to bind to DNA by intercalation.

1993 Jrnl. Agric. & Food Chem. 41 1122 Hydroxylation had occurred at the 3-position of the quinoxaline ring.

This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022).

单词	quinoxaline
释义	quinoxalinen. Brit. /kwᵻˈnɒksəliːn/, U.S. /kwəˈnɑksəˌlin/ Forms: 1800s– quinoxaline, 1900s– quinoxalin. Origin: A borrowing from German. Etymon: German Chinoxalin. Etymology: < German Chinoxalin (O. Hinsberg 1884, in Berichte der Deutsch. Chem. Ges. 17 319) < Chin- (in Chinolin quinoline n.) + -oxal (in Glyoxal glyoxal n.) + -in -ine suffix⁵, so called on account of its structural similarity to quinoline and its preparation from glyoxal. Chemistry. A weakly basic, crystalline, heterocyclic compound first prepared by reaction of glyoxal and o-phenylenediamine and used in organic synthesis; (also) any substituted derivative of this.Quinoxaline has a bicyclic structure formed from fused benzene and pyrazine rings. Formula: C₈H₆N₂. ΘΚΠ the world > matter > chemistry > organic chemistry > organic compounds > [noun] > heterocyclic compounds > other heterocyclic compounds alloxan1839 piperidine1854 valerin1866 acridine1870 piperidia1871 kairoline1883 quinoxaline1884 pyrimidine1885 pyrazolone1887 quinazoline1887 pyrazine1888 acridone1892 phthalazine1893 pyridazine1894 nitron1906 pyrrolizidine1939 1884 Jrnl. Chem. Soc. 46 1052 He [sc. Hinsberg]..proposes to call this series of compounds quinoxalines. 1926 H. G. Rule tr. J. Schmidt Text-bk. Org. Chem. 700 Quinoxalines..are weakly basic compounds, which may be reduced to hydro-quinoxalines, but are stable towards oxidising agents. 1951 I. L. Finar Org. Chem. x. 189 It [sc. glyoxal]..combines with o-phenylenediamines to form quinoxalines..; e.g., with o-phenylenediamine it forms quinoxaline itself. 1974 Nature 20 Dec. 654/1 The quinoxaline chromophores of echinomycin are similar in size to the quinoline chromophore of chloroquine, which is known to bind to DNA by intercalation. 1993 Jrnl. Agric. & Food Chem. 41 1122 Hydroxylation had occurred at the 3-position of the quinoxaline ring. This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022). < n.1884
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