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Lookup NU author(s): Dr Ross Harrington
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In the solid-state about molybdenum, with carbonyls and nitriles in the equatorial plane and an N-bonded thiocyanate group trans to the allyl ligand. In refluxing methanol or acetonitrile both 1, and the analogous chloro-complex [MoCl(CO)2(η3-C3 H5)(NCMe)2](2) catalytically convert PhC≡CPh to a mixture of hexaphenylbenzene and E,E-1,2,3,4-tetraphenylbutadiene. By contrast MeO2CC≡CCO2Me is not oligomerised. In methanol, complex 2 dimerises 1,4-diphenylbutadiyne to Z,E-1,4,5,8-tetraphenyl-1,7-octa-3,5-diene-1,7-diyne, whereas in the presence of base both the complex and the diyne, react preferentially with the solvent to generate the [Mo2(CO)4 (η3-C3H5)2 (OMe)3]- anion and Z-1,4-diphenyl-3- methoxy-but-3-ene-1-yne, respectively. © 2002 Elsevier Science B.V. All rights reserved.
Author(s): Goodyear JW, Hemingway CW, Harrington RW, Wisemann MR, Brisdon BJ
Publication type: Review
Publication status: Published
Journal: Journal of Organometallic Chemistry
ISSN (print): 0022-328X
ISSN (electronic): 1872-8561