Organometallics

Synthesis and Reactions of Nickel (0) η2-Cyclohexyne Complexes and X-ray Crystal Structure of Ni (η2-C6H8)((C6H11) 2PCH2CH2P (C6H11) 2)

MA Bennett, JA Johnson, AC Willis

文献索引：Bennett, Martin A.; Johnson, Julian A.; Willis, Anthony C. Organometallics, 1996 , vol. 15, # 1 p. 68 - 74

全文：HTML全文

被引用次数: 25

摘要

Reduction of 1, 2-dibromocyclohexene with 1% sodium amalgam in the presence of Ni (η2- C2H4) L2 gives cyclohexyne nickel (0) complexes Ni (η2-C6H8) L2 [L2= 2PPh3 (1), dcpe (2), 2PEt3 (3), dcpe=(C6H11) 2PCH2CH2P (C6H11) 2]. Complex 2 is shown by X-ray crystallography to be nearly planar. It reacts with CO2 to give the nickelacycle Ni {C6H8C (O) O}(dcpe)(9), the Ni-C σ-bond of which undergoes insertion with MeO2CC2CO2Me to ...