by treatment with freshly prepared Raney nickel. The ligands which are totally hydrogenated during the decomplexation are easily isolated in high yields, without racemization, if chiral. A very short and efficient synthesis of (+)-(3R,5S)-[6]-gingerdiol, based on this novel decomplexation procedure, which also allows the synthesis of the other diastereomers/enantiomers, is described.
通过用新鲜制备的阮内
镍处理,可以快速实现三
羰基铁二烯配合物的脱
金属。如果手性的话,很容易以高收率分离出在解配合过程中完全氢化的
配体,而没有外消旋作用。描述了基于这种新颖的分解过程的非常短而有效的合成(+)-(3 R,5 S)-[
6]-姜二醇,该合成方法还允许合成其他非对映异构体/对映异构体。