Synthesis of High Oxidation State Molybdenum Imido Heteroatom-Substituted Alkylidene Complexes
Author(s)
Townsend, Erik M.; Kilyanek, Stefan M.; Smith, Stacey J.; Hoveyda, Amir H.; Schrock, Richard Royce; Mueller, Peter; ... Show more Show less
DownloadSchrock_High oxidation.pdf (1.534Mb)
PUBLISHER_POLICY
Publisher Policy
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Alternative title
High Oxidation State Molybdenum Imido Heteroatom-Substituted Alkylidene Complexes
Terms of use
Metadata
Show full item recordAbstract
Reactions between Mo(NAr)(CHR)(Me[subscript 2]Pyr)(OTPP) (Ar = 2,6-i-Pr[subscript 2]C[subscript 6]H[subscript 3], R = H or CHCMe[subscript 2]Ph, Me[subscript 2]Pyr = 2,5-dimethylpyrrolide, OTPP = O-2,3,5,6-Ph[subscript 4]C[subscript 6]H) and CH[subscript 2]═CHX where X = B(pin), SiMe[subscript 3], N-carbazolyl, N-pyrrolidinonyl, PPh[subscript 2], OPr, or SPh lead to Mo(NAr)(CHX)(Me[subscript 2]Pyr)(OTPP) complexes in good yield. All have been characterized through X-ray studies (as an acetonitrile adduct in the case of X = PPh[subscript 2]). The efficiencies of metathesis reactions initiated by Mo(NAr)(CHX)(Me[subscript 2]Pyr)(OTPP) complexes can be rationalized on the basis of steric factors; electronic differences imposed as a consequence of X being bound to the alkylidene carbon do not seem to play a major role. Side reactions that promote catalyst decomposition do not appear to be a serious limitation for Mo═CHX species.
Date issued
2013-08Department
Massachusetts Institute of Technology. Department of ChemistryJournal
Organometallics
Publisher
American Chemical Society (ACS)
Citation
Townsend, Erik M., Stefan M. Kilyanek, Richard R. Schrock, Peter Mueller, Stacey J. Smith, and Amir H. Hoveyda. “High Oxidation State Molybdenum Imido Heteroatom-Substituted Alkylidene Complexes.” Organometallics 32, no. 16 (August 26, 2013): 4612–4617.
Version: Author's final manuscript
ISSN
0276-7333
1520-6041