单词 | phenanthraquinone |
释义 | > as lemmasphenanthraquinone phenanthraquinone n. Brit. /fɛnˈanθrəkwᵻˌnəʊn/ , /fɛnˌanθrəkwᵻˈnəʊn/ , U.S. /fɛnˌænθrəkwəˈnoʊn/ , /fɛnˈænθrəkwəˌnoʊn/ each of four isomeric quinones derived from phenanthrene which have the formula C14H8O2 and are yellow or red crystalline solids.ΚΠ 1876 H. E. Armstrong Introd. Stud. Org. Chem. 135 Phenanthraquinone crystallises in orange-yellow needles, and melts at about 200°. 1968 I. L. Finar Org. Chem. (ed. 4) II. x. 419 An example of the latter [sc. an internal Friedel-Crafts reaction] is the preparation of phenanthraquinone from benzil. 1991 Phytochemistry 30 2094/1 Phenanthraquinone was prepared by chromic acid oxidation of phenanthrene in the usual manner. < as lemmas |
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