An Improved Protocol for the Synthesis of [(η4-C4R4)Co(η5-C5H5)] Complexes
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https://figshare.com/articles/dataset/An_Improved_Protocol_for_the_Synthesis_of_sup_4_sup_C_sub_4_sub_R_sub_4_sub_Co_sup_5_sup_C_sub_5_sub_H_sub_5_sub_Complexes/2564560
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The reaction of bulky alkynes C2R2 with (η5-C5H5)Co(CO)(dimethyl fumarate) under microwave irradiation provides complexes of the type [(η4-C4R4)Co(η5-C5H5)] in good to excellent yields. This protocol represents a significant improvement over those reported previously. In particular, the formation of insertion products such as cyclopentadienones or cyclohexadienes can be avoided. In addition, because of the exceptional stability of (η5-C5H5)Co(CO)(dimethyl fumarate), the reactions can be carried out in crude solvents. The easy access to [(η4-C4R4)Co(η5-C5H5)] complexes stimulated a study of their reactivity, notably under cross-coupling conditions.
创建时间：
2016-02-22
