Ligands, transition metal complexes and methods of using same
申请人:San Diego State University Foundation
公开号:US06380393B1
公开(公告)日:2002-04-30
Compositions including at least one organic ligand including a first hetero atom and a second hetero atom directly bonded to the first hetero atom or located one carbon atom away from the first hetero atom, with at least one of the hetero atoms being nitrogen, and a transition metal moiety partially complexes by the organic ligand are provided. Such complexes have a controlled adaptable proton transfer ability and/or a hydrogen bonding ability which makes such compositions particularly useful as chemical reaction facilitators. Examples of chemical reactions facilitated by such compositions include hydrolysis reactions and carbon dioxide conversion reactions.
[EN] LIGANDS, TRANSITION METAL COMPLEXES AND METHODS OF USING SAME<br/>[FR] LIGANDS, COMPLEXES DE METAUX DE TRANSITION ET LEURS PROCEDES D'UTILISATION
申请人:UNIV STATE SAN DIEGO
公开号:WO2000056717A1
公开(公告)日:2000-09-28
Compositions including at least one organic ligand including a first hetero atom and second hetero atom directly bonded to the first hetero atom or located one carbon atom away from the first hetero atom, with at least one of the hetero atoms being nitrogen, and a transition metal moiety partially complexed by the organic ligand are provided. Such complexes have a controlled adaptable proton transfer ability and/or a hydrogen bonding ability which makes such compositions particularly useful as chemical reaction facilitators. Examples of chemical reactions facilitated by such compositions include hydrolysis reactions and carbon dioxide conversion reactions.
[EN] COMPOSITIONS AND METHODS FOR HYDRATION OF TERMINAL ALKYNES<br/>[FR] COMPOSITIONS ET PROCEDES DESTINES A HYDRATER DES ALCYNES TERMINALES
申请人:UNIV STATE SAN DIEGO
公开号:WO2002066425A2
公开(公告)日:2002-08-29
Compositions and methods are described for hydrating terminal alkynes catalytically in anti-Markovnikov fashion. The compositions comprise a transition metal complex including at least one organic ligand having at least two heteroatoms, wherein the heteroatoms are directly bonded or located one atom away. Preferably, at least one of the heteroatoms is nitrogen, which is typically provided as part of a heterocyclic ring. Other preferred heteroatams include S, P, N, As or Se. A particularly preferred catalyst employs a P-linked imidazole ligand bound to Ru. Such complexes have a controlled adaptable proton transfer ability and/or a hydrogen bonding ability making them particularly useful as chemical reaction facilitators.