Room-Temperature Z-Selective Homocoupling of alpha-Olefins by Tungsten Catalysts
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3,5-Dimethylphenylimido complexes of tungsten can be prepared using procedures analogous to those employed for other tungsten catalysts, as can bispyrrolide species and MonoAryloxide-Pyrrolide (MAP) species. Homocouplings of 1-hexene, 1-octene, and methyl 10-undecenoate are achieved in 45−89% yield and a Z selectivity of >99% with W(NAr′′)(C[subscript 3]H[subscript 6])(pyr)(OHIPT) as a catalyst. Homocoupling of terminal olefins in the presence of (E)-olefins elsewhere in the molecule also was achieved with excellent selectivity.
Date issued
2011-03Department
Massachusetts Institute of Technology. Department of ChemistryJournal
Organometallics
Publisher
American Chemical Society (ACS)
Citation
Marinescu, Smaranda C. et al. “Room-Temperature Z-Selective Homocoupling of α-Olefins by Tungsten Catalysts.” Organometallics 30.7 (2011): 1780–1782.
Version: Author's final manuscript
ISSN
0276-7333
1520-6041