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Author Schattenmann, F. J. ♦ Schrock, R. R. ♦ Davis, W. M.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CHEMISTRY ♦ CATALYSTS ♦ SYNTHESIS ♦ MOLYBDENUM COMPLEXES ♦ STRUCTURAL CHEMICAL ANALYSIS ♦ POLYENES ♦ NMR SPECTRA ♦ ORGANOMETALLIC COMPOUNDS ♦ POLYMERIZATION ♦ CYCLOALKENES
Abstract We wanted to prepare a catalyst that would yield polymers having exclusively one ring size and therefore began a search for new initiators containing `ancillary` ligands other than alkoxides. We report here that a new class of catalysts containing bulky carboxylate ligands can be prepared which encourage regioselective addition of the first triple bond to an alkylidene to give only a {beta}-subsituted metallacyclobutene and therefore polyenes that contain only six-membered rings in the polymer backbone as a consequence of specific head-to-tail cyclopolymerization. 14 refs., 1 fig., 2 tabs.
ISSN 00027863
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-04-03
Publisher Place United States
Journal Journal of the American Chemical Society
Volume Number 118
Issue Number 13


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