作为廉价而且低毒的金属,Fe和Co是发展催化剂的理想元素.同时由于Fe和Co有着多种氧化还原价态,它们的催化化学应该具有极其丰富的内容.然而由于种种原因,Fe和Co的催化剂很少得到有机化学家的关注.直到最近几年,人们才发现Fe和Co的催化剂可以很好地催化碳-碳偶联反应.综述了Fe和Co催化碳-碳偶联反应的条件、产率和选择性;探讨了这些新奇反应的可能机理;并介绍了这些反应在复杂化合物合成中的应用.
As inexpensive and relatively nontoxic metals, Fe and Co are ideal elements for the development of catalysts. Because they have multiple redox states, Fe and Co are also anticipated to have very rich catalytic chemistry. Nonetheless, very little attention has been paid to the catalysis of Fe and Co. The present review surveys reaction conditions, yields and selectivity of the C-C coupling reactions. Possible mechanisms of these intriguing reactions are discussed. Applications of these new reactions to complex molecule synthesis are also described.