N-Heterocyclic Carbene C,S Palladium(II) π-Allyl Complexes: Synthesis, Characterization, and Catalytic Application In Allylic Amination Reactions

被引：30
|
作者：
Krishnan, Deepa [1 ]
Wu, Meiyi [1 ]
Chiang, Minyi [1 ]
Li, Yongxin [1 ]
Leung, Pak-Hing [1 ]
Pullarkat, Sumod A. [1 ]
机构：
[1] Nanyang Technol Univ, Sch Phys & Math Sci, Div Chem & Biol Chem, Singapore 637371, Singapore
来源：
ORGANOMETALLICS | 2013年 / 32卷 / 08期
关键词：
TRANSITION-METAL-COMPLEXES; CROSS-COUPLING REACTIONS; ASYMMETRIC CATALYSIS; IRIDIUM COMPLEX; NHC LIGANDS; C-C; ENANTIOSELECTIVE ALLYLATION; STEREODIRECTING LIGANDS; SUBSTITUTION-REACTIONS; NICKEL(II) COMPLEXES;
D O I：
10.1021/om400110t
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A series of five-membered N-heterocyclic carbene C,S palladium(II) pi-allyl complexes were successfully developed and characterized. Structural analyses of these complexes revealed that the organopalladium chelates adopt a skew-envelope conformation with a trans disposition of the substituents on the metal chelate rings. Utilizing these C,S palladium(II) pi-allyl complexes as catalysts, a catalytic system for the allylic amination reaction has been developed. A series of C-N bond formations between amines and unsymmetrically substituted allylic carbonates could be catalyzed efficiently by complex (+/-)-9 in a regioselective manner.
引用
收藏
页码：2389 / 2397
页数：9
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