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Formation of a vinyliminium palladium complex by C-C coupling in vinylcarbene palladium aryl complexes
被引:41
|作者:
Albéniz, AC
Espinet, P
Pérez-Mateo, A
Nova, A
Ujaque, G
机构:
[1] Univ Valladolid, Fac Ciencias, E-47005 Valladolid, Spain
[2] Univ Autonoma Barcelona, Unitat Quim Fis, E-08193 Barcelona, Spain
关键词:
D O I:
10.1021/om051028s
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
Pentafluorophenyl palladium complexes 3 and 5 bearing a vinylcarbene ligand slowly decompose on heating by migratory insertion to give Pd(O) and the vinyliminium salts (Et2N=C(C6F5)CH=CHPh)X (X = Br, BF4). However, the presence of triphenylphosphine in complex 4 stabilizes 7, a compound with a C=C Pd-bound vinyliminium moiety, where there is a strong preference for the C=C versus the C=N coordination.
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页码:1293 / 1297
页数:5
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