Synthesis of Bicyclic Homochiral Dienes by Allylic Rearrangement of Cyclohexenols – Suitable Building Blocks for The Synthesis of Nagilactones
作者:Bernhard Westermann、Silke Dubberke
DOI:10.1002/jlac.199719970214
日期:1997.2
very short and straightforward synthesis towards highly functionalized dienes is described. The homochiral starting material, unsaturated β-oxo ester 2, can be prepared by enzyme-catalyzed saponification. The utility of the dienes has been demonstrated in a cycloaddition with N-phenyltriazolidinone as the dienophile. The Diels-Alder reaction is highly diastereoselective, yielding only one diastereomer
描述了非常短而直接的向高度官能化二烯的合成。可以通过酶催化的皂化来制备均手性原料不饱和β-氧代酯2。在用N-苯基三唑烷酮作为双亲物的环加成中已经证明了二烯的效用。Diels-Alder反应是高度非对映选择性的,仅产生一种非对映异构体。