专利号:US-9777022-B2 优先权日:2012-10-02 标题 :Process for the preparation of macrocyclic polyazacarboxylate ligands and chelates 发明人:MOORE DENNIS A; RAJAGOPALAN RAGHAVAN 权利人:MALLINCKRODT LLC; GUERBET SA 摘要:The present disclosure relates generally to a process for the synthesis of 1,4,7,10-tetraazacyclododecane ligands, chelates, and derivatives thereof. In particular, the present disclosure is directed to a process for the synthesis of 1,4,7,10-tetraaza-1,4,7,10-tetrakis(carboxymethyl)cyclododecane (DOTA) ligands, corresponding DOTA-metal chelates, and various derivatives thereof.
专利号:US-7485741-B2 优先权日:2002-12-02 标 题:Method of producing nitrile compounds from ethylenically-unsaturated compounds 发明人:BOURGEOIS DAMIEN; GALLAND JEAN-CHRISTOPHE; DIDILLON BLAISE; MARION PHILIPPE 权利人:RHODIA POLYAMIDE INTERMEDIATES 摘要:The present invention relates to a process for hydrocyanating a hydrocarbon-based compound containing at least one ethylenic unsaturation by reaction in liquid medium with hydrogen cyanide in the presence of a catalyst comprising a metal element chosen from transition metals and an organophosphorus ligand, characterized in that the organophosphorus ligand is a monodentate organophosphorus compound. The present invention is in particular useful for the synthesis of adiponitrile from butadiene.
专利号:US-12209104-B1 优先权日:2018-07-11 标 题:Metal complexes and methods of making the same 发明人:KIPLINGER JAQUELINE; BEATTIE ROSS; PAGANO JUSTIN; ERICKSON KARLA 权利人:TRIAD NAT SECURITY LLC 摘要:Disclosed herein are embodiments of metal complexes and methods of making the same. The disclosed method embodiments provide a one-step approach to making metal complexes, such as complexes comprising lanthanide metals, rare earth metals, transition metals, main group metals, and/or actinide metals that can be used various applications, such as in separations technology, catalysis (e.g., catalysts for pharmaceutical synthesis and/or catalysts for biomass conversion), nuclear chemistry, LED phosphors, scintillator materials, magnetic materials, and nuclear fuels.
专利号:US-2023212024-A1 优先权日:2020-04-14 标 题:New lithium rare-earth halides 发明人:BRAIDA MARC-DAVID 权利人:SOLVAY 摘要:The present invention concerns new lithium rare earth halides that may be used as solid electrolytes or in electrochemical devices. The invention also refers to wet and dry processes for the synthesis of such lithium rare earth halides and lithium rare earth halides susceptible to be obtained by these processes.