Abstract:
The present application relates to a method for producing unsymmetrical secondary tert-butyl amines by continuous amination in the gas phase, wherein tert-butyl amine is reacted in the presence of an alcohol or aldehyde and hydrogen on hydrogenation catalysts.
Abstract:
The present invention relates to a compound comprising a pesticide and an alkoxylate. The invention further relates to the alkoxylate, to a method for the production thereof, and to the use thereof as an auxiliary agent in pesticide-containing spray mixtures. The invention further relates to a method for combating phytopathogenic fungi and/or undesirable plant growth and/or undesirable insect or mite infestation and/or for regulating the growth of plants, wherein the compound is allowed to act on the respective pests, the habitat thereof or the plants to be protected from the respective pest, the ground and/or undesirable plants and/or the useful plants and/or the habitat thereof. The invention further relates to seed containing the compound.
Abstract:
Process for producing nickel(0)-phosphorus ligand complexes containing at least one nickel(0) central atom and at least one phosphorus-containing ligand, by reacting a nickel(II) compound with a reducing agent in the presence of the ligand to give a reaction mixture, characterized in that, a) in the reaction the molar ratio of reducing agent:nickel(II) compound is 1:1 to 1000:1, calculated as molar ratio of redox equivalents, b) in the reaction the molar ratio of phosphorus-containing ligand:nickel(II) compound is at most 30:1, calculated as molar ratio of P atoms:Ni atoms, c) in the resultant reaction mixture the nickel(0) content is at most 1.3% by weight, and d) the resultant reaction mixture is extracted by adding at least one dinitrile and at least one hydrocarbon, at least two immiscible phases forming.
Abstract:
The invention relates to a method for producing 3-pentenenitrile, said method being characterised by the following steps: (a) 1,3-butadiene is reacted with hydrogen cyanide on at least one catalyst to obtain a flow (1) containing 3-pentenenitrile, 2-methyl-3-butenenitrile, the at least one catalyst, and 1,3-butadiene; (b) the flow (1) is distilled in a column to obtain a top product flow (2) rich in 1,3-butadiene, and a bottom product flow (3) that is poor in 1,3-butadiene and contains 3-pentenenitrile, the at least one catalyst, and 2-methyl-3-butenenitrile; (c) the flow (3) is distilled in a column to obtain a top product flow (4) containing 1,3-butadiene, a flow (5) in a side-tap of the column, containing 3-pentenenitrile and 2-methyl-3-butenenitrile, and a bottom product flow (6) containing the at least one catalyst; and (d) the flow (5) is distilled to obtain a top product flow (7) containing 2-methyl-3-butenenitrile, and a bottom product flow (8) containing 3-pentenenitrile.
Abstract:
The invention relates to a method for producing adipodinitrile and methylglutar nitrile, said method being characterised by the following steps: (a) an educt flow containing pentenenitriles is reacted with hydrogen cyanide in the presence of at least one catalyst and at least one promoter to obtain a reaction flow containing pentenenitriles, the at least one catalyst, catalyst breakdown products, the at least one promoter, adipodinitrile and methylglutar nitrile; (b) the reaction flow is distilled to obtain a bottom product flow (3) that is depleted of pentenenitriles and contains the at least one catalyst, catalyst breakdown products, the at least one promoter, adipodinitrile and methylglutar nitrile, and a top product flow (4) enriched in pentenenitriles; (c) the flow (3) is extracted by an extraction means contained in flow (5) to obtain a top product flow (6) that is enriched with extraction means and contains the catalyst, and a bottom product flow (7) that is depleted of extraction means and contains catalyst breakdown products, the at least one promoter, pentenenitriles, adipodinitrile and methylglutar nitrile; (d) the flow (6) is distilled to obtain a bottom product flow (8) containing the catalyst, and a top product flow (9) containing the extraction means; (e) the flow (7) is distilled to obtain a bottom product flow (10) containing catalyst breakdown products, the at least one promoter, pentene nitriles, adipodinitrile and methylglutarnitrile, and a top product flow (11) containing the extraction means; (f) the flow (10) is distilled to obtain a bottom product flow (12) containing catalyst breakdown products, the at least one promoter, pentenenitriles, adipodinitrile and methylglutarnitrile, and a top product flow (13) containing pentenenitriles; (g) the flow (12) is distilled to obtain a bottom product flow (14) containing catalyst breakdown products and the at least one promoter, and a top product flow (15) containing adipodinitrile and methylglutar nitrile; and (h) the flow (15) is distilled to obtain a bottom product flow (16) containing adipodinitrile, and a top product flow (17) containing methylglutarnitrile.
Abstract:
The invention relates to a compound comprising a pesticide and an alkoxylate. The invention further relates to the alkoxylate, to a method for the production thereof, and to the use thereof as an auxiliary agent in pesticide-containing spray mixtures. The invention further relates to a method for controlling phytopathogenic fungi and/or undesirable plant growth and/or undesirable insect or mite infestation and/or for regulating the growth of plants, wherein the compound is allowed to act on the respective pests, the habitat thereof or the plants to be protected from the respective pest, the ground and/or undesirable plants and/or the useful plants and/or the habitat thereof. The invention further relates to seed containing the compound.