Hydroamination of Unactivated Alkenes Catalyzed by Novel Platinum(II) N-Heterocyclic Carbene Complexes

被引：46
作者：
Cao, Peng [1 ]
Cabrera, Jose [1 ]
Padilla, Robin [1 ]
Serra, Daniel [1 ]
Rominger, Frank [2 ]
Limbach, Michael [1 ,3 ]
机构：
[1] CaRLa Catalysis Res Lab, D-69120 Heidelberg, Germany
[2] Heidelberg Univ, Inst Organ Chem, D-69120 Heidelberg, Germany
[3] BASF SE, D-67056 Ludwigshafen, Germany
来源：
ORGANOMETALLICS | 2012年 / 31卷 / 03期
关键词：
GOLD(I)-CATALYZED INTRAMOLECULAR HYDROAMINATION; COORDINATED OLEFINIC LIGANDS; BAEYER-VILLIGER OXIDATION; INTERMOLECULAR HYDROAMINATION; ADDITION-REACTIONS; SUPPORTING LIGANDS; ZINC COMPLEX; HALIDE-ANION; ETHYLENE; PALLADIUM;
D O I：
10.1021/om200964u
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Cationic platinum(II) complexes with bi- or tridentate (pincer) functionalized NHC ligands were found to be catalytically active in the hydroamination of unactivated alkenes. In some cases, the presence of water had an activating effect on the complexes. Reactions with the N-nucleophilic substrate morpholine led to a noncatalytic reaction in which the deprotonation product of the key cationic beta-aminoalkyl platinum complex could be isolated and characterized. Surprisingly, attempted protonation of this complex did not give the expected N-alkylated product, indicating either the thermodynamic unfavorability of C-Pt bond cleavage or its kinetic inertness.
引用
收藏
页码：921 / 929
页数：9
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