When the dicobalt(hexacarbonyl) complex of N-(2-butynoyl)-4,4-dimethyloxazolidinone (1) is treated with chiral cyclopentadienyl (tricarbonyl)molybdenum anions, pairs of diastereomeric heterobimetallic (Co–Mo) complexes are obtained. In one instance, the two diastereomers have been separated by chromatography and they have been reacted with norbornadiene; each diastereomer leads with virtually complete
当用手性
环戊二烯基(三羰基)
钼阴离子处理N-(2-丁酰基)-4,4-二甲基
恶唑烷酮(1)的二
钴(六羰基)配合物时,会获得成对的非对映异构双
金属(Co-Mo)配合物。在一种情况下,两种非对映异构体已通过色谱法分离,并且它们已与降
冰片二烯反应。每个非对映异构体实际上都具有对内Pauson-Khand环加合物5的单一对映异构体的立体控制。