A Convenient synthesis of both enantiomeric trans- and cis-2,3-disubstituted 5-norbornenes (bicyclo[2.2.1]heptenes), 2 and 3, has been developed by utilizing the Diels-Alder reaction between cyclopentadiene and chiral dienophiles obtained from a single chiral template, D-mannitol (1).
通过利用
环戊二烯与从单一手性模板D-
甘露醇(1)获得的手性双烯亲和体之间的Diels-Alder反应,已经开发出了一种便捷的合成方法,用于制备两种手性对映体的反式和顺式2,3-二取代5-
降冰片烯(双环[2.2.1]庚烯),即化合物2和3。