Abstract: A high yielding extraction process for the purification of N-(2,4-dichloro-5-(4-(difluoromethyl)-3-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)methanesulfonamide (sulfentrazone) by selectively partitioning the desired product from the crude mixture, thereby increasing its purity by decreasing the presence of unwanted impurities and improving the color and particle size distribution of the final sulfentrazone product. The selective partitioning is achieved by the sequential use of an organic solvent, water, aqueous inorganic base and a concentrated aqueous inorganic acid.

Abstract: A high yielding extraction process for the purification of N-(2,4-dichloro-5-(4-(difluoromethyl)-3-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl)methanesulfonamide (sulfentrazone) by selectively partitioning the desired product from the crude mixture, thereby increasing its purity by decreasing the presence of unwanted impurities and improving the color and particle size distribution of the final sulfentrazone product. The selective partitioning is achieved by the sequential use of an organic solvent, water, aqueous inorganic base and a concentrated aqueous inorganic acid.

Abstract: The invention provides improved methods of synthesizing oltipraz, which result in higher overall yield and better purity of the desired product.

Abstract: A one-pot process for the manufacture of 5-chloro-7-methylindoline-2,3-dione starting from 2-hydroxyimino-N-(2-methylphenyl)acetamide via tandem cyclization in sulfuric acid and acetic acid, followed by in-situ chlorination with sulfur dioxide and chlorine gas in high regioselectivity and yield.

Abstract: The invention provides improved methods of synthesizing oltipraz, which result in higher overall yield and better purity of the desired product.

Abstract: The invention provides improved methods of synthesizing oltipraz, which result in higher overall yield and better purity of the desired product.

Abstract: The invention provides improved methods of synthesizing oltipraz, which result in higher overall yield and better purity of the desired product.

Abstract: Described herein are formulations and methods for treating, managing, or preventing sleeplessness or restlessness, for increasing focus or concentration, or for decreasing anxiety. The formulations comprise honokiol and magnolol, which are present in magnolia bark extract, in admixture with one or more polyunsaturated fatty acids, such as those found in virgin salmon oil. As compared to other lipid formulations of honokiol and magnolol, the formulations show improved stability and increased uptake.

Abstract: The invention provides improved methods of synthesizing oltipraz, which result in higher overall yield and better purity of the desired product.

Abstract: A process to purify 3,6-dichlorosalicylic acid by selectively solubilizing impurities and unreacted starting materials without loss of yield.

Abstract: Described herein are formulations and methods for treating, managing, or preventing sleeplessness or restlessness, for increasing focus or concentration, or for decreasing anxiety. The formulations comprise honokiol and magnolol, which are present in magnolia bark extract, in admixture with one or more polyunsaturated fatty acids, such as those found in virgin salmon oil. As compared to other lipid formulations of honokiol and magnolol, the formulations show improved stability and increased uptake.

Abstract: The invention provides improved methods of synthesizing oltipraz, which result in higher overall yield and better purity of the desired product.

Abstract: A new process for making agrochemically important N-[2,4-dichloro-5-[4-(difluoro methyl)-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl] phenyl]methanesulfonamide by reacting 1-(5-amino-2,4-dichlorophenyl)-4,5-dihydro-4-difluoromethyl-3-methyl-1,2,4-triazol-5(1H)-one and methanesulfonyl chloride in water using an inorganic base to dynamically control the reaction pH and in the presence of a phase transfer catalyst suspended in an 1:1 aromatic solution.

Abstract: A new process for making agrochemically important N-[2,4-dichloro-5-[4-(difluoro methyl)-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl] phenyl]methanesulfonamide by reacting 1-(5-amino-2,4-dichlorophenyl)-4,5-dihydro-4-difluoromethyl-3-methyl-1,2,4-triazol-5(1H)-one and methanesulfonyl chloride in water using an inorganic base to dynamically control the reaction pH and in the presence of a phase transfer catalyst suspended in an 1:1 aromatic solution.

Abstract: The invention provides a novel process for improving the recovery of precious metals from recalcitrant refractory ores by the use of hydrofluoric acid dissolved in ionic liquids. The solution of hydrogen fluoride gas in an ionic liquid is contacted with dry crushed ore at a temperature and for a period of time commensurate with the fracturing of a specific recalcitrant refractory ore. The excess ionic liquid is separated from the ore and the fractured ore is further treated with dilute sodium cyanide solution to extract precious metals in greater yields.

Abstract: The invention provides a novel process for improving the recovery of precious metals from recalcitrant refractory ores by the use of hydrofluoric acid dissolved in ionic liquids. The solution of hydrogen fluoride gas in an ionic liquid is contacted with dry crushed ore at a temperature and for a period of time commensurate with the fracturing of a specific recalcitrant refractory ore. The excess ionic liquid is separated from the ore and the fractured ore is further treated with dilute sodium cyanide solution to extract precious metals in greater yields.