Journal ArticleDOI
Kinetics and substituent effects in the formation of zirconocene thioaldehyde complexes: .beta.-hydride elimination versus cyclometalation
Reads0
Chats0
TLDR
Effet des substituants en position para de l'α-toluenethiolate du complexe alkylthio de depart as mentioned in this paper, et.Abstract:
Effet des substituants en position para de l'α-toluenethiolate du complexe alkylthio de departread more
Citations
More filters
Journal ArticleDOI
Kinetic Isotope Effects in the Study of Organometallic Reaction Mechanisms
Journal ArticleDOI
Patterns of Stoichiometric and Catalytic Reactions of Organozirconium and Related Complexes of Synthetic Interest
TL;DR: In this paper, the reactions of organometallic zirconium compounds are reviewed and a specific interest is placed on reactions where C-C bonds are formed, where the authors focus on the reactions where the C-c bond is formed.
Journal ArticleDOI
Zirconocene complexes of unsaturated organic molecules: new vehicles for organic synthesis
TL;DR: The zirconocene unit stabilizes highly strained alkynes and alkenes, allowing their use in selective carbon-carbon bond-forming reactions and increases the reactivity of unactivated molecules, enabling them to participate in nontraditional transformations.
Journal ArticleDOI
Early transition metal thiolates
TL;DR: A comprehensive and systematic review of the syntheses, structures and reactivities of thiolate complexes of group 4 and 5 metals is presented in this paper, which includes a discussion of monometallic and polymetallic species as well as recent advances in heterobimetallic derivatives.
Journal ArticleDOI
Synthesis and Chemistry of Titanacyclopentane and Titanacyclopropane Rings Supported by Aryloxide Ligation
Matthew G. Thorn,John E. Hill,Steven A. Waratuke,Eric S. Johnson,Philip E. Fanwick,Ian P. Rothwell +5 more
Abstract: Treatment of the titanacyclopentadiene compound [Ti(OC6H3Ph2-2,6)2(C4Et4)] (3) (OC6H3Ph2-2,6 = 2,6-diphenylphenoxide) with olefins leads to the formation of a variety of stable titanacyclopentane derivatives along with one equivalent of substituted 1,3-cyclohexadiene. The structural and spectroscopic properties of the ethylene product [Ti(OC6H3Ph2-2,6)2(CH2)4] (4) show a ground state titanacyclopentane structure, but facile fragmentation on the NMR time scale to form a bis(ethylene) complex has been detected. The substituted products [Ti(OC6H3Ph2-2,6)2(C4H6R2)] (R = Me, 5; Et, 6; Ph, 7) formed from α-olefins RCHCH2 exist as a mixture of regio- and stereoisomers in hydrocarbon solution. Analysis of a crystal obtained from solutions of 7 showed a trans-2,5-diphenyl-titanacyclopentane ring to be present in the solid state. Alternative routes to the titanacyclopentane compounds involve treatment of the dichlorides [Ti(OC6H3Ph2-2,6)2Cl2] (1) or [Ti(OC6HPh4-2,3,5,6)2Cl2] (2) with either sodium amalgam (2 Na per...