期刊
JOURNAL OF ORGANOMETALLIC CHEMISTRY
卷 696, 期 1, 页码 179-187出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2010.08.033
关键词
Hydroamination; Allenes; Butadienes; Palladium; Iminophosphines; Catalysis
资金
- National Science Foundation [CHE-0841611]
The synthesis of alicyclic 3-iminophosphine ligands is extended to include a new framework incorporating a cyclohexenyl backbone with an N-aryl imino functionality (3IP(Ar)). Accordingly, a series of palladium(II) complexes employing this new ligand have been synthesized and utilized in the intermolecular hydroamination of 3-methyl-1,2-butadiene (1,1-dimethylallene) and 2,3-dimethyl-1,3-butadiene with secondary amines. The complex [(3IP(Ar))Pd(allyl)]OTf displays excellent catalytic activity in these reactions, selectively producing allylic amine products in high conversion under mild conditions, with an improved rate relative to that observed for our previously reported catalysts. Further, the reactivity trends for the (3IP)Pd triflate systems prove to be complimentary to other known late transition metal based catalytic systems. (C) 2010 Elsevier B.V. All rights reserved.
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