期刊
JOURNAL OF ORGANOMETALLIC CHEMISTRY
卷 695, 期 3, 页码 441-445出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2009.10.027
关键词
Carbenes; Palladium; Transmetalation; Migratory insertion; Allylic complexes; Insertion
资金
- Spanish MEC [CTQ2007-67411/BQU, CSD2006-0003]
- Junta de Castilla y Leon [GR169]
New 1,1-alkoxy, aryl substituted palladium eta(3)-allyls [Pd(mu-Br){eta(3)-C(C(6)F(5))(OMe)CHR(1)CHR(2)}](2) can be synthesized from [W(CO)(5){C(OMe)CHR(1)=CHR(2)}] and a palladium perfluoroaryl complex. The allyls are formed by transmetalation of the carbene fragment followed by migratory insertion of C(6)F(5) to the putative and highly reactive Pd carbene complex. This reaction pathway predominates in all cases, but insertion of the double bond of the tungsten alkoxyvinylcarbenes into the Pd-C(6)F(5) bond leads to secondary products, namely C(6)F(5)(OMe)C=CR(1)CH(C(6)F(5))R(2). (C) 2009 Elsevier B.V. All rights reserved.
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