作者:Kevin J Hodgetts
DOI:10.1016/s0040-4039(01)00567-6
日期:2001.5
Two approaches to optically active 2-substituted chroman-4-ones are described. The first utilized the oxidation of a preformed chroman ring and the second an intramolecular Mitsunobu cyclization. The methodology was applied to the synthesis of the biologically active natural product (−)-pinostrobin (18).
描述了两种光学活性的2-取代的苯并吡喃-4-酮的方法。第一种利用预先形成的苯并二氢吡喃环的氧化,第二种利用分子内光延环化。该方法被应用于生物活性天然产物(-)-pinostrobin(18)的合成。