| 释义 |
naphthoquinone Chem.|næfθəʊˈkwɪnəʊn|
Also naphtha-.
[f. naphthalene + -o + quinone.]
Each of the six compounds, C10H6O2, obtained (theoretically) by replacing two of the ≥ CH groups of naphthalene by carbonyl groups, spec. 1,4- (or α-)naphthoquinone, a volatile yellow solid whose molecule forms part of the structure of vitamin K.
1870Jrnl. Chem. Soc. XXIII. 446/2 (Index), Naphthoquinones. 1914H. T. Clarke Introd. Study Org. Chem. xxxiv. 417 The ortho quinone, β-naphthaquinone,..is a red crystalline solid, which decomposes at 115–120°. 1942Ann. Reg. 1941 344 The four forms of vitamin K proved to be naphthoquinone derivatives. 1951I. 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. 1966McGraw-Hill Encycl. Sci. & Technol. XI. 194/2 The naphthoquinones are prepared by oxidation of the corresponding aminonaphthols. |