2,3—萘二甲醛的合成

SYNTHESIS OF 2,3—NAPHTHALENEDICARBOXALDEHYDE

本文报导了一条以a,a,a′,a′-四溴邻二甲苯为起始原料,经Diels——Alde,反应,还原及选择性氧化合成2,3—萘二甲醛的可行路线。

This paper reports an efficient synthesis route to 2, 3—naphthalenedicarboxaldehyde. The construction of the carbon skeleton was based on the generation of a dibromo-o-quinomethide from a,a, a',a'-tetrabromo-o-oxylene by iodide and its subsequent Diels-Alder reaction with maleic anhydride. Conversion of this diacid to 2, 3—naphthalenedicarboxaldehyde was accomplished by the standard reduction-partial oxidation sequence.