Multiple C−H Bond Activations in Corannulene by a Dirhenium Complex
Multiple C−H Bond Activations in Corannulene by a Dirhenium Complex
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二铼络合物对 Corannulene 中的多个 C–H 键激活
DOI:
10.1002/chem.201806405
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发表时间:
2019
期刊:
影响因子:
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通讯作者:
Smith, Mark D.
中科院分区:
文献类型:
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作者:
Adams, Richard D.;Dhull, Poonam;Pennachio, Matthew;Petrukhina, Marina A.;Smith, Mark D.
The reaction of Re2(CO)8(μ‐C6H5)(μ‐H),1with corannulene (C20H10) yielded the product Re2(CO)8(μ‐H)(μ‐η2‐1,2‐C20H9),2(65 % yield) containing a Re2metalated corannulene ligand formed by loss of benzene from1and the activation of one of the CH bonds of the nonplanar corannulene molecule by an oxidative‐addition to1. The corannulenyl ligand has adopted a bridging η2‐σ+π coordination to the Re2(CO)8grouping. Compound2reacts with a second equivalent of1to yield three isomeric doubly metalated corannulene products: Re2(CO)8(μ‐H)(μ‐η2‐1,2‐μ‐η2‐10,11‐C20H8)Re2(CO)8(μ‐H),3(35 % yield), Re2(CO)8(μ‐H)(μ‐η2‐2,1‐μ‐η2‐10,11‐C20H8)Re2(CO)8(μ‐H),4(12 % yield), and Re2(CO)8(μ‐H)(μ‐η2‐1,2‐μ‐η2‐11,10‐C20H8)Re2(CO)8(μ‐H),5(12 % yield), by a second CH activation on a second rim double bond on the corannulene molecule. The isomers differ by the relative orientations of the coordinated Re2(CO)8(μ‐H) groupings. All new products were characterized structurally by single crystal X‐ray diffraction analysis.