| 单词 | α-naphthoquinone |
| 释义 | > as lemmasα-naphthoquinone Each of six isomeric compounds, C10H6O2, notionally obtained by replacing two of the ≧CH groups of naphthalene by carbonyl groups; spec. (more fully 1,4-naphthoquinone, α-naphthoquinone) a volatile yellow solid whose molecule forms part of the structure of vitamin K. ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > polynuclear aromatic hydrocarbons green oil1607 paranaphthalene1838 anthracene1840 oxanthracene1862 chrysene1864 cerulein1866 acenaphthene1868 naphthoquinone1870 anthracene oil1873 azulene1874 acenaphthylene1875 ionene1894 1870 Jrnl. Chem. Soc. 23 Index 446/2 Naphthoquinones. 1873 C. E. Groves (title) On the formation of naphthaquinone by the direct oxidation of naphthalene. 1908 Chem. Abstr. 2 104 In the reaction of α-hydronaphthoquinone with quinone, the former is oxidized to α-naphthoquinone and the latter reduced to hydroquinone. 1928 Amer. Jrnl. Bot. 15 620 Juglone, or the 5-hydroxy-alpha-naptha-quinone, has been synthesized by oxidation of alpha-naptha-quinone. 1942 Ann. Reg. 1941 344 The four forms of vitamin K proved to be naphthoquinone derivatives. 1951 I. L. Finar Org. Chem. I. xxix. 593 Theoretically, six naphthaquinones are possible... Only three are known, the 1:2-, 1:4- and 2:6-, but it appears that derivatives of 2:3-naphthaquinone have been prepared. 1972 Proc. National Acad. Sci. U.S.A. 69 2190/1 (table) Compound... Napthaquinone. 1996 New Scientist 20 Jan. 9/1 The naphthoquinones also kill other sucking pests that have grown resistant to pesticides. < as lemmas |
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