| Patent Number |
Title Of Patent |
Date Issued |
| 6137009 |
Method of manufacturing flumetralin |
October 24, 2000 |
| The invention is a process to manufacture the intermediate secondary amine N-ethyl-2-chloro-6-fluoro-benzylamine, and then the process of reacting this intermediate to manufacture the herbicide flumetralin. Equimolar quantities of monoethylamine, sodium hydroxide, and 2-chloro-6-fluo |
| 6018079 |
Process for removing N-nitroso compounds from organo-amine compositions including dinitroaniline |
January 25, 2000 |
| A simple and inexpensive process is described for reducing the concentration of N-nitroso-containing compounds in compositions comprising N-nitroso-containing compounds and other desired compounds wherein the N-nitroso-containing compounds thermally decompose at a temperature below t |
| 5922915 |
Process for removing N-nitroso compounds from organo-amine compositions including dinitroaniline |
July 13, 1999 |
| A simple and inexpensive process is described for reducing the concentration of N-nitroso-containing compounds. The process is applicable for compositions comprising N-nitroso-containing compounds and other desired compounds wherein the N-nitroso-containing compounds thermally decomp |
| 5922913 |
Process for nitrating aromatic amines |
July 13, 1999 |
| Disclosed is a process of nitrating or dinitrating an aromatic amine compound that involves reacting the aromatic amine and nitric acid in the presence of acetic acid such that the molar ratio of the aromatic amine compound to acetic acid is from about 1:2 to about 1:16, and the molar |
| 5777168 |
Process for producing N-alkyl-dinitroalkylanilines |
July 7, 1998 |
| This invention relates to a process for producing N-alkyl-dinitroalkylaniline and particularly N-sec-butyl-4-tert-butyl-2,6-dinitroaniline by methylation of an alkylphenol followed by a one or two stage dinitration of the resulting alkylanisole which is followed by reaction with an a |
| 5770545 |
A2,6-dinitroaniline herbicide |
June 23, 1998 |
| This invention relates to pendralin [2,6-dinitro-N-(1-ethylpropyl)-4-tert-butylaniline], preemergence and postemergence herbicidal methods and herbicidal compositions employing pendralin. |
| 5728881 |
Process for preparing trifluralin |
March 17, 1998 |
| A process is provided for preparing 2,6-dinitro-N,N-dipropyl-4-(trifluoromethyl)benzenamine from 4-chlorotrifluoromethylbenzene. The process includes a two stage nitration and an amination step. Ethylene dichloride is utilized as a diluent and solvent in the nitration steps. Spent ac |
| 5705698 |
Process for the production of pendimethalin and iso-pendimethalin |
January 6, 1998 |
| A process is provided for the preparation of isometrically pure pendimethalin and iso-pendimethalin as well as mixtures thereof. |
| 5689006 |
Process for producing n-alkyl-dinitroalkylanilines |
November 18, 1997 |
| This invention relates to a process for producing N-alkyl-dinitroalkylaniline and particularly N-sec-butyl-4-tert-butyl-2,6-dinitroaniline by methylation of an alkylphenol followed by nitration of the resulting alkylanisole which is followed by reaction with an amine. |
| 5663441 |
Production of mono-N-alkyl-dinitroalkylanilines and N-alkyl-dinitroaniline derivatives |
September 2, 1997 |
| This invention relates to a process for producing mono- and di- N-alkyl-dinitroalkylaniline or dinitroaniline derivative and particularly N-sec-butyl-4-tert-butyl-2,6-dinitroaniline by methylation of an alkylphenol or phenol derivative followed by nitration of the resulting acetic ac |
