Stereo- and regiocontrolled hydroxylation of oxyallyl [4+3] cycloadducts. A concise synthesis of hinokitiol
作者:Jae Chol Lee、Sung Yun Cho、Jin Kun Cha
DOI:10.1016/s0040-4039(99)01589-0
日期:1999.10
Stereo- and regioselective hydroxylation of 8-oxabicyclo[3.2.1]oct-6-en-3-ones was achieved by the action of (diacetoxyiodo)benzene in methanolic potassium hydroxide (the Moriarty oxidation). Subsequent double elimination afforded a convenient preparation of substituted tropolones, as exemplified in a three-step synthesis of hinokitiol (1).
通过(二乙酰氧基碘)苯在甲醇氢氧化钾中的作用(Moriarty氧化)实现了8-氧杂双环[3.2.1] oct-6-en-3-ones的立体和区域选择性羟基化。随后的双重消除提供了取代的对苯二酚的方便制备,如扁柏酚的三步合成中所举例说明的(1)。