Monoaryloxide Pyrrolide (MAP) Imido Alkylidene Complexes of Molybdenum and Tungsten That Contain 2,6-Bis(2,5-R[subscript 2]-pyrrolyl)phenoxide (R = i-Pr, Ph) Ligands and an Unsubstituted Metallacyclobutane on Its Way to Losing Ethylene
Name
Reithofer_2013-Monoaryloxide pyrrolide.pdf
Size
1.25 MB
Format
Adobe PDF
Checksum (MD5)
44590d2e042a475c2a4feb640da3a9e2
Author(s)
Reithofer, Michael R.
Dobereiner, Graham E.
Schrock, Richard Royce
Muller, Peter
Date Issued
May 2013
Journal
Organometallics
Publisher
American Chemical Society (ACS)
Citation
Reithofer, Michael R., Graham E. Dobereiner, Richard R. Schrock, and Peter Müller. “Monoaryloxide Pyrrolide (MAP) Imido Alkylidene Complexes of Molybdenum and Tungsten That Contain 2,6-Bis(2,5-R2-pyrrolyl)phenoxide (R = i-Pr, Ph) Ligands and an Unsubstituted Metallacyclobutane on Its Way to Losing Ethylene.” Organometallics 32, no. 9 (May 13, 2013): 2489-2492. © 2013 American Chemical Society
Version
Final published version
Abstract
We report the synthesis of Mo and W MAP complexes that contain O-2,6-(2,5-R[subscript 2]-pyrrolyl)[subscript 2]C[subscript 6]H[subscript 3] (2,6-dipyrrolylphenoxide or ODPP[superscript R]) ligands in which R = i-Pr, Ph. W(NAr)(CH-t-Bu)(Pyr)(ODPP[superscript Ph]) (4a; Ar = 2,6-disopropylphenyl, Pyr = pyrrolide) reacts readily with ethylene to yield a metallacyclobutane complex, W(NAr)(C[subscript 3]H[subscript 6])(Pyr)(ODPP[superscript Ph]) (5). The structure of 5 in the solid state shows that it is approximately a square pyramid with the WC[subscript 4] ring spanning apical and basal positions. This SP′ structure, which has never been observed as an actual intermediate, must now be regarded as an integral feature of the metathesis reaction.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Terms of Use
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.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1021/om400114h
