Abstract: A process is described for preparing aryllithium compounds by reaction of metallic lithium in an ether-containing solvent with an aryl halide, wherein prior to or at the beginning of the reaction a catalyst is added, the catalyst containing a halogen-free, polynuclear aromatic (aryl catalyst) or consisting of such a compound.

Abstract: The invention relates to a method for producing alkyl lithium compounds and aryl lithium compounds by reacting lithium metal with alkyl or aryl halogenides in a solvent, the concentration of the alkyl/aryl halogenide and the alkyl/aryl lithium compound being detected according to an in-line measurement in the reactor by means of IR spectroscopy, and an exact recognition of the end point of the dosing of the halogenide constituents being carried out by evaluation of the IR measurement. Said method enables an optimum reactive process and reaction yield. The identification of the respective concentration of the educt and the product is a reliable reactive process. The yield of the reaction is also optimised by determining the end point of the halogenide dosing, as is the purity of the product due to a lower concentration thereof during the reaction.

Abstract: Disclosed is a method for producing Alkyllithium compounds by reacting metallic lithium with an Alkyl halide in a solvent. The reaction is performed at a reduced pressure at the boiling point of the solvent.

Abstract: A process is described for preparing aryllithium compounds by reaction of metallic lithium in an ether-containing solvent with an aryl halide, wherein prior to or at the beginning of the reaction a catalyst is added, the catalyst containing a halogen-free, polynuclear aromatic (aryl catalyst) or consisting of such a compound.

Abstract: A process is described for the preparation of LiAlH4 solutions, in which lithium hydride reacts with an aluminium halide in diethyl ether to give lithium aluminium hydride, the lithium halide which arises is separated off, and wherein a solvent the complexing energy of which with LiAlH4 is greater than the complexing energy of diethyl ether with LiAlH4 is then added, and the diethyl ether is removed by distillation.

Abstract: Disclosed is a method for producing Alkyllithium compounds by reacting metallic lithium with an Alkyl halide in a solvent. The reaction is performed at a reduced pressure at the boiling point of the solvent.

Abstract: A process is described for the preparation of LiAlH4 solutions, in which lithium hydride reacts with an aluminium halide in diethyl ether to give lithium aluminium hydride, the lithium halide which arises is separated off, and wherein a solvent the complexing energy of which with LiAlH4 is greater than the complexing energy of diethyl ether with LiAlH4 is then added, and the diethyl ether is removed by distillation.

Abstract: A method for preparing lithium amide is described in which in a first method step lithium metal is reacted with ammonia to form lithium bronze and in a second method step the lithium bronze is reacted with a 1,3-diene or an arylolefin in the presence of a solvent.

Abstract: Concentrated, stable solutions of alkali metal alkoxides ROM, which consist of an alkali metal cation and a secondary or tertiary alcohol residue, in aprotic solvents are described, wherein, relative to alkoxide content, the solutions contain at least 1.0 and at most 15 mol % of alkali metal hydroxide M′OH and at most 1.0 mol % of free alcohol R—OH, wherein R is a secondary or tertiary alkyl residue and wherein M and M′ are mutually independently Li, Na, K, Rb or Cs. A process for the production of the solution and the use thereof are also described.

Abstract: The invention relates to solutions of lithium pyrrolidine in a mixture consisting of tetrahydrofuran (THF) and of hydrocarbons, whereby the lithium pyrrolidine concentration ranges from 2 to 30 wt. %, and the molar ratio Li pyrrolidine: THF=1: 0.5 to 1: 1.5. The invention also relates to methods for preparing these solutions and to uses of these solutions.

Abstract: A process is described for preparing aryllithium compounds by reaction of metallic lithium in an ether-containing solvent with an aryl halide, wherein prior to or at the beginning of the reaction a catalyst is added, the catalyst containing a halogen-free, polynuclear aromatic (aryl catalyst) or consisting of such a compound.

Abstract: This patent describes a solution of ethyllithium in dibutyl ether, a non-pyrophoric solution of ethyllithium in dibutyl ether in a concentration of 7 to 8%, a non-pyrophoric solution of ethyllithium in dibutyl ether and in a hydrocarbon in a concentration of 2 to 8%, process for preparing the solutions and the use of the solutions.

Abstract: A method for preparing lithium amide is described in which in a first method step lithium metal is reacted with ammonia to form lithium bronze and in a second method step the lithium bronze is reacted with a 1,3-diene or an arylolefin in the presence of a solvent.

Abstract: Alkaline earth metal alkylene diamides of Ba, Sr, Ca and a method for their production.

Abstract: Alkaline earth metal alkylene diamides of Ba, Sr, Ca and a method for their production.

Abstract: This patent describes a solution of ethyllithium in dibutyl ether, a non-pyrophoric solution of ethyllithium in dibutyl ether in a concentration of 7 to 8%, a non-pyrophoric solution of ethyllithium in dibutyl ether and in a hydrocarbon in a concentration of 2 to 8%, process for preparing the solutions and the use of the solutions.

Abstract: Disclosed is a dissolved methyllithium-containing composition for use in synthesis reactions (synthesis composition) and processes of preparing the composition. In the sythesis composition the methyllithium is contained in a solvent of the general formula (I) ##STR1## wherein independently R.sup.1 and R.sup.2 are a hydrogen, methyl or ethyl residue and R.sup.3 and R.sup.4 are a methyl or ethyl residue. To prepare the methyllithium-containing synthesis composition of the invention lithium powder or granular lithium is dispersed in a solvent having the general formula I, methyl halide is added at a controlled rate, the reaction temperature is maintained in the range of from 0.degree. to 60.degree. C., and the resulting lithium halide is separated from the methyllithium solution.

Abstract: The method of making the stable non-pyrophoric solution containing a lithium diorganoamide of the formula, LiNR'R" wherein R' and R" each have from 2 to 6 carbon atoms, in an inert liquid hydrocarbon solvent includes mixing a secondary amine including the R' and R" groups and an alcohol having 3 to 6 carbon atoms with a lithium granulate or powder in the hydrocarbon solvent and reacting the secondary amine, the alcohol and the lithium with addition of an electron acceptor compound, advantageously styrene or isobutene, to form the stable non-pyrophoric solution containing the lithium diorganoamide and a lithium alkoxide having 3 to 6 carbon atoms.

Abstract: Polyhalogenated organic compounds, such as polychlorinated dibenzodioxines, dibenzofurans, biphenyls, biphenyl ethers, phenols, benzenes and cyclohexanes as well as chlorofluorohydrocarbons are destroyed by reaction with a surplus of strongly basic hydrocarbon-soluble, strongly basic lithium compounds in an inert solvent at reaction temperatures from 0.degree. to 200.degree. C.

Abstract: A process is disclosed for the preparation of tertiary alcohols, alpha-alkyl substituted nitriles, alkyl-substituted imines or tertiary amines by alkylation of a starting material that is a carbonyl compound or a nitrile followed by hydrolysis wherein the alkylation is carried out with the aid of a reaction system formed by suspending a mixture of:substantially 15 to 25% by weight of methyllithium or ethyllithium;substantially 35 to 45% by weight of an inorganic compound selected from the group which consists of at least one metal oxide selected from the group which consists of SiO.sub.2, Al.sub.2 O.sub.3, and CaO, and synthetic anhydrous aluminum silicate; andsubstantially 35 to 45% by weight of a paraffin oil or wax; in an organic solvent selected from the group which consists of:C.sub.5 to C.sub.10 saturated aliphatic hydrocarbons, C.sub.5 to C.sub.