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| Number | Title | Issue Date |
| 7247561 | Method of removing residual contaminants from an environment A method of reducing the amount of halogenated materials in a halogen-containing environment. The method comprises introducing an aluminum compound into the halogen-containing environment, reacting the aluminum compound with the halogenated material to form a gaseou... | 07/24/2007 |
| 7187744 | Method of providing a nuclear fuel and a fuel element provided by such a method A method for providing a nuclear fuel includes forming a uranium-molybdenum alloy that provides an enhanced reactivity in research, test and radioisotope production nuclear reactors. In this uranium-molybdenum alloy, the uranium is enriched in the isotope 235-U, whi... | 03/06/2007 |
| 7166734 | Method for making organometallic compounds Organometallic compounds of Group IIB and IIIA metals that are substantially pure and contain low levels of oxygenated impurities are provided. Also provided are methods of preparing such organometallic compounds. ... | 01/23/2007 |
| 6770588 | Reduction of carbonyl compounds by a silane in the presence of a zinc catalyst A reductive system including a silane, preferably PMHS, and an active zinc compound, which is monomeric and not a hydride, wherein a reduction of a carbonyl substrate to a corresponding alcohol is achievable. ... | 08/03/2004 |
| 6521771 | Use of zinc treated with metal hydride in organometallic synthesis The present invention describes the use of zinc treated with metal hydride in organometallic synthesis.... | 02/18/2003 |
| 6184404 | Process for the selective alkylation of aldehydes by means of organozinc compounds There is described a process for the enantioselective alkylation of aldehydes by means of organozinc compounds, of which a ligand of the zinc is transferred to the aldehyde, and the other ligand acts as so-called dummy ligand. As novel substances there ar... | 02/06/2001 |
| 6140522 | Method for altering the ratio of isotopes of the metal of a metal alkyl A method for altering the ratio of isotopes of the metal of a metal alkyl, in that an amount of depleted or enriched metal alkyl in preferably liquid form is contacted with an amount of the metal of the metal alkyl or an alloy of that metal and is held in... | 10/31/2000 |
| 5380895 | Method for the synthesis of metal alkyls and metal aryls Method for forming metal alkyl compounds by the direct combination of metal halide, lithium metal, and alkyl or aryl halide and for purifying metal alkyl compounds by repeated sublimation/pumping cycles. The method can be used to produce metal alkyl compo... | 01/10/1995 |
| 5350869 | Purification of trialkylgallium, synthesis of trialkylgallium Trialkylgallium is purified of group II B p-type impurities, particularly Zn, Hg, and Cd, by contacting the trialkylgallium with a metallic gallium-containing melt. Also, trialkylgallium can be produced by contacting a dialkyl group II B compound with a m... | 09/27/1994 |
| 5245065 | Process for the preparation of di-alkyl compounds of group 2B metals Di-alkyl compounds of a Group 2b metal is reacted with an alkyl halide in the presence of magnesium to obtain the di-alkyl compound of the Group 2b metal and magnesium halide. Di-alkyl compound-containing products are obtainable from the resulting product... | 09/14/1993 |
| 4962216 | Preparation of dineopentylcadmium Dineopentylcadmium is prepared from cadmium dihalide and neopentyl Grignard in tetrahydrofuran. The reaction product is isolated by addition of dioxane, filtration, removal of solvent via distillation, and purification by sublimation.... | 10/09/1990 |
| 4841082 | Preparation of dimethylzinc Dimethylzinc is prepared by heating a dimethylaluminum halide, e.g., dimethylaluminum chloride, and a dialkylzinc, e.g., diethylzinc, with distillative removal of dimethylzinc from the reaction mixture which results therefrom.... | 06/20/1989 |
| 4812586 | Preparation of Group II metal alkyls A method of preparing high purity dimethyl cadmium or dimethyl zinc suitable for use in the deposition of Group II-VI epitaxial layers, which consists of forming an adduct of the metal alkyl with a non-chelating tertiary amine containing at least two tert... | 03/14/1989 |
| 4767873 | Helical metallocene oligomers and a method for their preparation The invention describes a helicene compound having the structure ##SPC1## which contains seven six-membered conjugated aromatic rings capped by two five-membered rings which do not superimpose on each other. The invention also describes a helical metallocene o... | 08/30/1988 |
| 4732992 | Method for recovery of alkylaluminum halides Dialkylaluminum chloride produced as a co-product in the reaction of a trialkylaluminum with zinc chloride or metallic zinc and an alkyl halide, to produce a dialkylzinc, is purified from contaminants containing zinc by contacting it with a dialkylaluminu... | 03/22/1988 |
| 4720560 | Hybrid organometallic compounds, particularly for metal organic chemical vapor deposition Compounds having the molecular formula: wherein x is an integer from 2 to 4 inclusive, each said R substituent is independently selected from hydride, lower alkyl, phenyl, alkyl-substituted phenyl, cyclopentadienyl, and alkyl substituted cyclopentadienyl,... | 01/19/1988 |
| 4670571 | Method for recovery of alkylaluminum halides Dialkylaluminum chloride produced as a co-product in the reaction of a trialkylaluminum with zinc chloride or metallic zinc and an alkyl halide, to produce a dialkylzinc, is purified from contaminants containing zinc by contacting it with an alkylaluminum... | 06/02/1987 |
| 4325840 | Organomagnesium complexes Organomagnesium complexes, which have the formula: wherein RM is an organozinc or organoboron compound, R' is a primary alkyl or aryl group, and having an m:n ratio of about 1 or greater, are disclosed. These complexes are prepared by reacting magnesium with a... | 04/20/1982 |
| 4311812 | Borane reducing resins This invention relates to novel metal catalysts of a solid nonionic crosslinked resin having amine or phosphine borane adducts on or in which a reduced metal is precipitated, the method of producing said catalysts and their use in catalysis.... | 01/19/1982 |
| 4307262 | Use of zinc diphenyl as alkylation inhibitor in ligand-complexing process In processes in which liquid sorbents that are solutions in an aromatic hydrocarbon or halogenated aromatic hydrocarbon of a bimetallic salt complex having the generic formula MI MII Xn.Aromatic, wherein MI is G... | 12/22/1981 |
| 3959324 | Alkyltin cyclopropylcarbinylsulfonate Pesticidal and anti-inflammatory cyclopropyl compounds, cyclopropyl intermediates for the preparation of pesticidal compounds, especially chrysanthemic acid-like intermediates, and a process for preparing same.... | 05/25/1976 |
