New Pd(II) Binuclear Complexes as Effective Catalysts in Oxidative-Heck Reaction Using Arylboronic Acid Derivatives

作者：Suleiman Rami; Hussain S M Shakil; Fettouhi Mohammed; El Ali Bassam^*

来源：Synthesis and Reactivity in Inorganic Metal-Organic and Nano-Metal Chemistry, 2012, 42(6): 850-856.

DOI：10.1080/15533174.2011.618480

• arylboronic acid
• binuclear palladium
• bipyridines
• chemoselectivity
• coupling
• olefins
• phosphines

A series of new binuclear Pd(II) complexes based on chelating diimines and bridging diphosphine or diimine ligands have been synthesized and characterized successfully. The formula of the new complexes are [Pd-2(mbyp)(2)(DPA)(2)](PF6)(4) (1), [Pd-2(mbyp)(2)(DPE)(2)] (PF6)(4) (2), [Pd-2(mbyp)(2)(4,4-byp)(2)] (PF6)(4) (3), [Pd-2(mbyp)(2)(t-pye)(2)] (PF6)(4) (4) [mbyp = 4,4%26apos;-dimethyl-2,2%26apos;-bipyridine, DPA = 1,2-bis(diphenylphosphino)acetylene, DPE = 1,2-bis(diphenylphosphino)ethylene, 4,4-byp = 4,4%26apos;-bipyridine, and t-ype = trans 1,2-bis(4-pyridyl) ethylene)]. The catalytic activities of the new complexes have been investigated in the coupling of arylboronic acid derivatives to various olefins. Results obtained showed interesting catalytic activities and chemoselectivities for the new complexes in the coupling reactions to produce the conjugate addition and heck coupling products under free base or oxidant conditions.

• 出版日期2012
• 单位中国石油大学（北京）