摘要:
The invention relates to a process for preparing biaryl alcohols, in which anodic dehydrodimerization of substituted phenols is carried out in the presence of partially fluorinated and/or periluorinated mediators and a supporting electrolyte at a graphite electrode.
摘要:
The invention relates to a process for preparing biaryl alcohols, in which anodic dehydrodimerization of substituted phenols is carried out in the presence of partially fluorinated and/or periluorinated mediators and a supporting electrolyte at a graphite electrode.
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:
The invention relates to a process for preparing unsymmetrical biaryl by anodic dehydrodimerization of substituted ortho-alkoxyaryl alcohols in the presence of partially fluorinated and/or perfluorinated mediators and a supporting electrolyte.
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:
The invention relates to a process for preparing unsymmetrical biaryl by anodic dehydrodimerization of substituted ortho-alkoxyaryl alcohols in the presence of partially fluorinated and/or perfluorinated mediators and a supporting electrolyte.
摘要:
The present invention relates to a method for producing vanillin, which comprises an electrochemical oxidation of an aqueous, lignin-comprising suspension or solution at an anode, wherein the anode used is a silver electrode.
摘要:
A process for producing a solvent mixture comprising (A) at least one compound of formula (I) (B) at least one compound of formula (II a) or (II b) (C) optionally at least one additive selected from aromatic compounds, sultones and exo-methylene ethylene carbonates, melamine, urea, organic phosphates and halogenated organic carbonates, (D) optionally at least one lithium salt, and from 3 to 30 weight ppm of water, which process comprises (a) components (A), (B) and, if used, (C) being mixed with one another, (b) dried over at least one ion exchanger or molecular sieve, (c) separated from ion exchanger or, respectively, molecular sieve, and (d) at least one lithium salt, if used, being added, where the variables are defined as follows: R1, R2 are each the same or different and selected from C1-C4-alkyl, R3 is selected from hydrogen and C1-C4-alkyl.
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:
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.