Coupling of Carbomethoxy and Vinylidene Ligand in Molybdenum Complexes

Treatment of [Cp(dppe)(CO)MoCC(Ph)CH2CHCH2]I (2) with MeONa caused nucleophilic attack to occur at the terminal CO ligand. This is followed by a coupling reaction of the resulting carbomethoxy group with Cα of the vinylidene ligand accompanied with coordination of the terminal olefin to afford Cp...

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Bibliographic Details
Published inOrganometallics Vol. 19; no. 3; pp. 269 - 274
Main Authors Yang, Jung-Yen, Huang, Shou-Ling, Lin, Ying-Chih, Liu, Yi-Hong, Wang, Yu
Format Journal Article
LanguageEnglish
Published WASHINGTON American Chemical Society 07.02.2000
Amer Chemical Soc
Subjects
Chemistry
Chemistry, Inorganic & Nuclear
Chemistry, Organic
Physical Sciences
Science & Technology
COORDINATED LIGANDS
C-C
TUNGSTEN
CRYSTAL
ALKYNE
CARBYNE
HALIDE-COMPLEXES
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Summary:Treatment of [Cp(dppe)(CO)MoCC(Ph)CH2CHCH2]I (2) with MeONa caused nucleophilic attack to occur at the terminal CO ligand. This is followed by a coupling reaction of the resulting carbomethoxy group with Cα of the vinylidene ligand accompanied with coordination of the terminal olefin to afford Cp(dppe)MoC(COOMe)C(Ph)CH2CHCH2 (5). Similar coupling was observed when [Cp(dppe)(CO)MoCC(Ph)CH2Ph]I (3) was treated with MeONa, but the reaction afforded the neutral allylic complex Cp(dppe)Mo[CH(COOMe)C(Ph)CHPh] (6). The structures of complexes 5 and 6 have been determined by X-ray diffraction analysis.
Bibliography:ark:/67375/TPS-JBL87PJ8-2
istex:0ECB8D44A69B38C57D1D0D14C43ED644A2EA729A
ISSN:0276-7333
1520-6041
DOI:10.1021/om9907167