Patents by Inventor Dietrich Mangold
Dietrich Mangold has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4491672Abstract: Aromatic azomethines are prepared by reacting anilines with formaldehyde and then removing the greater part of the water by distillation, low-boiling alcohols, in certain amounts, being present during the distillation and, if desired, during the reaction or during a part thereof.The aromatic azomethines obtainable by the novel process are valuable starting materials for the preparation of herbicides, especially pre-emergence herbicides and post-emergence herbicides, fungicides, insecticides, bacteriostatic agents, fungistatic agents and vulcanization accelerators.Type: GrantFiled: June 2, 1980Date of Patent: January 1, 1985Assignee: BASF AktiengesellschaftInventors: Winfried Richarz, Dietrich Mangold, Bjoern Girgensohn
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Patent number: 4424364Abstract: A process for the preparation of pyrazoles by reacting a pyrazoline with sulfur or selenium in a solvent.Type: GrantFiled: July 15, 1981Date of Patent: January 3, 1984Assignee: BASF AktiengesellschaftInventors: Norbert Goetz, Dietrich Mangold, Josef Wahl
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Patent number: 4410733Abstract: Acetals of malonaldehyde are prepared by reacting an orthoester with a vinyl ether in the presence of a catalytic amount of FeCl.sub.3. The malonaldehyde acetals obtainable by the process according to the invention are valuable intermediates in the preparation of dyes, crop protection agents and drugs.Type: GrantFiled: January 6, 1982Date of Patent: October 18, 1983Assignee: BASF AktiengesellschaftInventors: Dietrich Mangold, Josef Wahl, Wolf-Karlo Aders
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Patent number: 4384141Abstract: .alpha.-Bromoacetophenone-oxime-ethers are prepared by reacting acetophenone-oxime-ethers with a brominating agent at from 20.degree. to 100.degree. C., in the absence of light.The .alpha.-bromoacetophenone-oxime-ethers obtained are valuable starting materials for the preparation of drugs, dyes and pesticides.Type: GrantFiled: November 5, 1981Date of Patent: May 17, 1983Assignee: BASF AktiengesellschaftInventors: Peter Schaefer, Dietrich Mangold
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Patent number: 4354979Abstract: Organic isocyanates are prepared by thermal decomposition of N,N'-disubstituted allophanic acid esters in an organic carbonate at from 150.degree. to 400.degree. C.The isocyanates obtainable by this process are valuable starting materials for the preparation of crop protection agents, pesticides, dyes, synthetic resins, plastics, textile waterproofing agents, detergents, bleaching agents and adhesives.Type: GrantFiled: October 2, 1981Date of Patent: October 19, 1982Assignee: BASF AktiengesellschaftInventors: Volker Schwendemann, Dietrich Mangold
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Patent number: 4310677Abstract: Alkyl anthranilates are prepared by reacting an isatin with an alkanol and hydrogen peroxide in the presence of an alkali metal alkanolate.The alkyl anthranilates obtainable by the process of the invention are valuable starting materials for the preparation of pesticides, dyes and drugs.Type: GrantFiled: December 17, 1980Date of Patent: January 12, 1982Assignee: BASF AktiengesellschaftInventors: Gernot Reissenweber, Dietrich Mangold
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Patent number: 4306074Abstract: A mixture of an alkyl 3-chloroanthranilate and an alkyl 6-chloroanthranilate, with a particular molar ratio of the components, is prepared by (a) reacting 3-chlorophthalic anhydride with ammonia, an alkali metal hydroxide and an alkali metal hypochlorite or (b) converting 3-chlorophthalic anhydride to 3-chlorophthalimide followed by reaction of the latter with an alkali metal hydroxide and an alkali metal hypochlorite, and, finally, esterifying the mixture of 5-chloroisatoic anhydride and 8-chloroisatoic anhydride, obtained by method (a) or method (b), with an alkanol.The compounds obtainable by the process of the invention are valuable starting materials for the preparation of dyes, crop protection agents and scents.Type: GrantFiled: May 27, 1980Date of Patent: December 15, 1981Assignee: BASF AktiengesellschaftInventors: Peter Tonne, Heinz-Guenter Oeser, Dietrich Mangold
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Patent number: 4297491Abstract: A process for the preparation of a 2,3-dioxo-1,4-benzoxazine derivative of the formula I ##STR1## where R.sup.1 and R.sup.2 are identical or different and each is hydrogen, alkyl, halogen, haloalkyl, alkoxy, haloalkoxy or nitro, by oxidizing an isatin of the formula II ##STR2## where R.sup.1 and R.sup.2 have the above meanings, with a peroxydisulfate dissolved or suspended in 30-98% strength sulfuric acid.The 2,3-dioxo-1,4-benzoxazine derivatives obtainable by the novel process have fungicidal or fungistatic properties.Type: GrantFiled: November 3, 1980Date of Patent: October 27, 1981Assignee: BASF AktiengesellschaftInventors: Gernot Reissenweber, Dietrich Mangold
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Patent number: 4260559Abstract: Amidosulfonic acids are prepared by reacting ureas with oleum of a particular composition, first at a low temperature and then at a higher temperature, in the presence of an organic solvent. The products are starting materials for the preparation of dyes and pesticides.Type: GrantFiled: November 26, 1979Date of Patent: April 7, 1981Assignee: BASF AktiengesellschaftInventors: Peter Jacobs, Dietrich Mangold, Gerhard Hamprecht
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Patent number: 4260560Abstract: Sulfamyl halides are prepared by reacting sulfamic acids with halogen in the presence of phosphorus or of a phosphorus trihalide; the sulfamic acid can first be prepared from an isocyanate or urea and then be reacted as above in a one-vessel method.The compounds obtainable by the process of the invention are valuable starting materials for the preparation of crop protection agents, dyes and drugs.Type: GrantFiled: November 26, 1979Date of Patent: April 7, 1981Assignee: BASF AktiengesellschaftInventors: Peter Jacobs, Gerhard Hamprecht, Dietrich Mangold
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Patent number: 4235814Abstract: .alpha.-haloalkylcarbamyl halides are manufactured by reacting N-tert.-alkyl-N-1-alkenyl-carbamyl halides with a hydrogen halide at from -78.degree. C. to +80.degree. C.The .alpha.-haloalkylcarbamyl halides, e.g. .alpha.-chloroalkylcarbamyl chlorides, especially .alpha.-chloroethylcarbamyl chloride, prepared by the process of the invention, are valuable starting materials for the manufacture of surface-coating raw materials, textile coatings, dyes, drugs and crop protection agents.Type: GrantFiled: July 3, 1978Date of Patent: November 25, 1980Assignee: BASF AktiengesellschaftInventors: Karl-Heinz Koenig, Christian Reitel, Dietrich Mangold
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Patent number: 4229365Abstract: Fluorobenzenes are manufactured by reacting substituted chlorobenzenes with potassium fluoride in the presence of catalytic amounts of cesium fluoride and in the presence of certain solvents; m-nitrofluorobenzenes and m-cyanofluorobenzenes can also be manufactured in the absence of cesium fluoride. The products are starting materials for the manufacture of dyes, pharmaceuticals and pesticides.Type: GrantFiled: May 22, 1978Date of Patent: October 21, 1980Assignee: BASF AktiengesellschaftInventors: Heinz-Guenter Oeser, Karl-Heinz Koenig, Dietrich Mangold
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Patent number: 4226811Abstract: A process for the preparation of substituted fluorobenzenes which contain a nitro group or a cyano group and may or may not contain an aliphatic radical or an additional halogen atom, wherein the corresponding substituted chlorobenzene is reacted with potassium fluoride in the presence of a crown ether and a solvent at from 150.degree. to 230.degree. C.Type: GrantFiled: January 11, 1979Date of Patent: October 7, 1980Assignee: BASF AktiengesellschaftInventors: Heinz-Guenter Oeser, Karl-Heinz Koenig, Dietrich Mangold
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Patent number: 4187227Abstract: 2,4-Dioxo-oxazolidines are manufactured by reacting aromatic amines with .alpha.-hydroxycarboxylic acid of the formula ##STR1## where R.sup.1 and R.sup.2 have the above meanings, Hal is halogen, preferably chlorine, and R.sup.4 is alkyl of 1 to 4 carbon atoms in the presence of a base, preferably at 20-120.degree. C.Type: GrantFiled: February 21, 1978Date of Patent: February 5, 1980Assignee: BASF AktiengesellschaftInventors: Norbert Goetz, Dietrich Mangold, Bernd Zeeh
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Patent number: 4137261Abstract: N-Vinyl-N-alkyl-carbamic acid chlorides are manufactured by reacting crude Schiff bases, which have advantageously been manufactured in the presence of pentane, with phosgene and tertiary amines, treating the reaction mixture with water and then isolating the end product, after having separated off the aqueous phase containing the amine salt. The products are starting materials for the manufacture of surface-coating intermediates, plastics, paints and crop protection agents.Type: GrantFiled: December 27, 1976Date of Patent: January 30, 1979Assignee: BASF AktiengesellschaftInventors: Karl-Heinz Koenig, Christian Reitel, Dietrich Mangold
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Patent number: 4095034Abstract: Process for the manufacture of N-alkyl and N-alkenyl carbamates by reacting a hydroxyl compound with a carbamyl chloride essentially free from phosgene and hydrogen chloride at a temperature of from 60.degree. to 130.degree. C in alkyl or halogen benzenes as solvent.Type: GrantFiled: April 9, 1976Date of Patent: June 13, 1978Assignee: BASF AktiengesellschaftInventors: Dietrich Mangold, Karl-Heinz Koenig, Christian Reitel
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Patent number: 3995049Abstract: A fungicidal method employing N-(3,5-dichlorophenyl)-5-methyl-5-vinyloxazolidine-2,4-dione as the active ingredient.Type: GrantFiled: November 21, 1975Date of Patent: November 30, 1976Assignee: BASF AktiengesellschaftInventors: Dietrich Mangold, Bernd Zeeh, Ernst-Heinrich Pommer
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Patent number: 3992444Abstract: The production of sulfamic acid halides by reaction of sulfamic acids with acid halides, and the new sulfamic acid halides. The products are starting materials for the production of plant protection agents, dyes and pharmaceuticals.Type: GrantFiled: September 16, 1974Date of Patent: November 16, 1976Assignee: BASF AktiengesellschaftInventors: Gerhard Hamprecht, Dietrich Mangold, Karl-Heinz Koenig
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Patent number: 3966750Abstract: N-(3,5-dichlorophenyl)-5-H or lower alkyl-5-lower alkenyloxazolidine-2,4-diones or N-(3,5-dichlorophenyl)-5-methyleneoxazolidine-2,4-dione and fungicidal uses thereof.Type: GrantFiled: May 28, 1974Date of Patent: June 29, 1976Assignee: BASF AktiengesellschaftInventors: Dietrich Mangold, Bernd Zeeh, Ernst-Heinrich Pommer
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Patent number: 3954827Abstract: New and valuable substituted O-[aminosulfonyl]-glycolic anilides and a process for controlling the growth of unwanted plants with these compounds.Type: GrantFiled: September 3, 1974Date of Patent: May 4, 1976Assignee: BASF AktiengesellschaftInventors: Adolf Fischer, Gerhard Hamprecht, Dietrich Mangold, Wolfgang Rohr