摘要:
γ-Hydroxycarboxylic esters and γ-lactones which are suitable as flavors can be prepared by electrochemical reductive cross-coupling of α,β-unsaturated esters with carbonyl compounds in an undivided electrolysis cell having a cathode composed of lead, lead alloys, cadmium, cadmium alloys, mercury, steel, glassy carbon or boron-doped diamonds and a basic aqueous electrolyte comprising an electrolyte salt which suppresses the cathodic formation of hydrogen.
摘要:
The invention relates to a process for preparing biaryls by anodic cross-dehydrodimerization of substituted phenols with arenes in the presence of partially fluorinated and/or perfluorinated mediators and a supporting electrolyte.
摘要:
Process for coating plastics with metals, wherein the plastics are pretreated with a composition comprising at least one salt having a melting point of less than 100° C. at 1 bar (hereinafter referred to as ionic liquid).
摘要:
The present invention relates to a method of removing residues of a metal salt comprising ionic liquid—from a workpiece, which comprises the step (a) treatment of at least part of the workpiece surface with a treatment agent comprising a metal salt ionic liquid-free and/or an organic solvent which is an optionally halogenated hydrocarbon or a mixture of two or more of such hydrocarbons.
摘要:
Described is an electrode material which is suitable for a lithium ion accumulator and comprises a porous metal-organic framework, wherein the framework comprises lithium ions and optionally at least one further metal ion and at least one bidentate organic compound and the at least one bidentate organic compound is based on a dihydroxydicarboxylic acid which can be reversibly oxidized to a quinoid structure. Also described is a porous metalorganic framework, the use thereof and also lithium ion accumulators comprising such electrode materials.
摘要:
The present invention relates to a process for removing sulfur-comprising compounds from fuels, wherein a sulfur-comprising fuel is brought into contact with copper-1,3,5-benzenetricarboxylic acid MOF.
摘要:
The present invention relates to a process for preparing an amine, which comprises the step cathodic reduction of a corresponding oxime derivative of the general formula (I) where R is C1-6-alkyl or C2-6-alkenyl which is optionally substituted by one or more substituents selected independently from the group consisting of phenyl, O—C1-6-alkyl, NH—C1-6-alkyl, N(C1-6-alkyl)2, OH and NH2; R1 is H; C1-6-alkyl or C(O)—C1-6-alkyl and A is a 5-, 6- or 7-membered hydrocarbon ring which is saturated or has a double bond and in which at least one CH2 group may, if appropriate, be replaced by —O—, —S— —NH—, —N═ or —N(C1-6-alkyl)- and which may optionally be substituted by one or more further substituents selected independently from the group consisting of phenyl, C1-6-alkyl, O—C1-6-alkyl, NH—C1-6-alkyl, N(C1-6-alkyl)2, OH and NH2; wherein, based on the ring carbon bearing the substituent R, the oxime derivative has an excess of the R or S form of at least 10%.