Efficient Selenation of Quinones: Synthesis of Novel Benzo[<i>b</i>]naphtho[2,3-<i>e</i>]selenintrione and Dibenzo[<i>b</i>,<i>e</i>]seleninone
作者:Makoto Sakakibara、Takeshi Toru、Takahiro Imai、Yoshihiko Watanabe、Yoshio Ueno
DOI:10.1246/bcsj.65.1291
日期:1992.5
bis(2-methoxy-carbonylphenyl) diselenide, chlorodiphenylphosphine, and LiOH afforded 2-[(2-methoxycarbonylphenyl)seleno]-1,4-naphthoquinone from which 12H-benzo[b]naphtho[2,3-e]selenin-6,11,12-trione was synthesized. 1,4-Dimethoxy-2,3-dimethyl-10H-dibenzo[b,e]selenin-10-one was prepared starting from 6-bromo-2,3-dimethylbenzoquione through the selenation and cyclization steps.
2-溴萘醌与由双(2-甲氧基-羰基苯基)二硒化物、氯二苯基膦和 LiOH 生成的芳烃烯醇酸离子进行硒化,得到 2-[(2-甲氧基羰基苯基)硒基]-1,4-萘醌,其中 12H-苯并[b]合成了naphtho[2,3-e]selenin-6,11,12-trione。1,4-二甲氧基-2,3-二甲基-10H-dibenzo[b,e]selenin-10-one 是以 6-溴-2,3-二甲基苯醌为原料,通过硒化和环化步骤制备的。