the bicyclic vinyl stannae 10. After 10 was converted into the diol 15, this latter was oxidated with the Dess-Martin reagent into the dialdehyde 4. Compound 4 was then submitted to a pinacolic coupling reaction leading to the bicyclic cis-diol 3 in a stereospecific manner.
由可用的羟基醛6制备炔丙基衍
生物8,并用Bu 3 SnH处理,以95%的收率得到双环
乙烯基锡烷10。在将10转化为二醇15后,后者用Dess-Martin试剂氧化为二醛4。然后使化合物4经历立构特异性方式的pinacolic偶联反应,产生双环顺式二醇3。