phthalazinen.

Brit.

/ˈ(f)θaləziːn/, U.S.

/ˈθæləˌzin/

Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: phthalic adj., azine n.

Etymology: < phthal- (in phthalic adj.) + azine n., after German Phtalazin (C. Liebermann 1886, in Berichte der Deutsch. Chem. Ges. 19 766; now Phthalazin).

Chemistry.

An aromatic heterocyclic base, C₈H₆N₂, whose molecule resembles that of naphthalene with the carbon atoms at positions 2 and 3 replaced by nitrogen; 2,3-benzodiazine, 2,3-diazanaphthalene. Also: any derivative of this.

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

1893 Jrnl. Chem. Soc. 64 i. 347 The bye-product obtained in methylating phthalazine is very similar to the last compound.

1916 Jrnl. Amer. Chem. Soc. 38 2537 Gabriel studied the oxidation of phthalazine by the use of potassium permanganate and obtained this same pyridazine dicarboxylic acid.

1956 I. L. Finar Org. Chem. II. xii. 468 Phthalazines are formed by heating the benzoyl derivative of benzaldehyde hydrazones.

1970 W. F. Beech Fibre-reactive Dyes v. 175 Phthalazines. In this series also only one compound has so far become of importance for making reactive dyes, viz. 1, 4-dichloro-phthalazine-6-carbonyl chloride.

2000 Biotech Week (Nexis) 8 Mar. 10–11 Researchers in Switzerland have identified a series of phthalazines that may be useful in inhibiting angiogenesis.

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

单词	phthalazine
释义	phthalazinen. Brit. /ˈ(f)θaləziːn/, U.S. /ˈθæləˌzin/ Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: phthalic adj., azine n. Etymology: < phthal- (in phthalic adj.) + azine n., after German Phtalazin (C. Liebermann 1886, in Berichte der Deutsch. Chem. Ges. 19 766; now Phthalazin). Chemistry. An aromatic heterocyclic base, C₈H₆N₂, whose molecule resembles that of naphthalene with the carbon atoms at positions 2 and 3 replaced by nitrogen; 2,3-benzodiazine, 2,3-diazanaphthalene. Also: any derivative of this. 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 1893 Jrnl. Chem. Soc. 64 i. 347 The bye-product obtained in methylating phthalazine is very similar to the last compound. 1916 Jrnl. Amer. Chem. Soc. 38 2537 Gabriel studied the oxidation of phthalazine by the use of potassium permanganate and obtained this same pyridazine dicarboxylic acid. 1956 I. L. Finar Org. Chem. II. xii. 468 Phthalazines are formed by heating the benzoyl derivative of benzaldehyde hydrazones. 1970 W. F. Beech Fibre-reactive Dyes v. 175 Phthalazines. In this series also only one compound has so far become of importance for making reactive dyes, viz. 1, 4-dichloro-phthalazine-6-carbonyl chloride. 2000 Biotech Week (Nexis) 8 Mar. 10–11 Researchers in Switzerland have identified a series of phthalazines that may be useful in inhibiting angiogenesis. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < n.1893
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