Carbon-carbon bond formation versus hydrogen transfer in the reaction of alkynes with mono(cyclopentadienyl)zirconium(II) complexes: regioselective dimerization, cocyclotrimerization, and catalytic cyclotrimerization. The preparation and x-ray structures of Cp(dmpe)XZr[(R)C:C(R')C(R):C(R')] [R = CH3; R' = H, CH3; X = Cl, CH3; dmpe = 1,2-bis(dimethylphosphino)ethane] and of CpZr(dmpe)Cl[C.tplbond.C(t-Bu)][CH:CH(t-Bu)]
| Autor: | Ytsen Wielstra, Sandro Gambarotta, Auke Meetsma, Jan L. De Boer, Michael Y. Chiang |
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| Rok vydání: | 1989 |
| Předmět: |
chemistry.chemical_classification
Stereochemistry Organic Chemistry Regioselectivity Metallacycle Propyne Medicinal chemistry Inorganic Chemistry chemistry.chemical_compound chemistry Acetylene Cyclopentadienyl complex Carbon–carbon bond 1 2-Bis(dimethylphosphino)ethane Physical and Theoretical Chemistry Aliphatic compound |
| Zdroj: | Organometallics. 8:2696-2702 |
| ISSN: | 1520-6041 0276-7333 |
| DOI: | 10.1021/om00113a028 |
| Popis: | La reaction de CpZr(dmpe) 2 X, [X=Cl, Me; dmpe=bis-dimethylphosphino ethane et d'alcynes aliphatiques donne le complexe CpZr(dmpe) Cl [C≡C(t-Bu)] [CH=CH(t-Bu)] et un derive de cyclopentadienyl-1 dimethyl-2,4 zirconacyclopentadiene-2,4. Ces complexes interviennent dans les reactions de cyclotrimerisation et cocyclotrimerisation de propyne, acetylene, acetonitrile |
| Databáze: | OpenAIRE |
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