Patent classifications
C07D291/06
METHOD FOR PREPARING ACESULFAME POTASSIUM
Described herein is a method for preparing acesulfame potassium, comprising: pressing an acetoacetamide-N-sulfonic acid triethylamine salt solution and a cyclizing agent solution into a Venturireactor via different inlets, mixing same at a mixing section and a diffusion section of the Venturireactor, and then injecting the obtained mixture into a flow reactor, wherein the cyclizing agent solution is formed by dissolving sulfur trioxide in a first organic solvent; subjecting the mixture passing through the flow reactor to a sulfonation cyclization reaction under the action of a supported solid base heterogeneous catalyst preset in the flow reactor, and entering the obtained sulfonated cyclized product into a hydrolysis reactor; subjecting the sulfonated cyclized product and a hydrolysis agent preset in the hydrolysis reactor to a hydrolysis reaction to obtain a hydrolysis product solution; and adding potassium hydroxide into an organic phase of the hydrolysate solution for a salt-forming reaction to obtain the acesulfame potassium.
METHOD FOR PREPARING ACESULFAME POTASSIUM
Described herein is a method for preparing acesulfame potassium, comprising: pressing an acetoacetamide-N-sulfonic acid triethylamine salt solution and a cyclizing agent solution into a Venturireactor via different inlets, mixing same at a mixing section and a diffusion section of the Venturireactor, and then injecting the obtained mixture into a flow reactor, wherein the cyclizing agent solution is formed by dissolving sulfur trioxide in a first organic solvent; subjecting the mixture passing through the flow reactor to a sulfonation cyclization reaction under the action of a supported solid base heterogeneous catalyst preset in the flow reactor, and entering the obtained sulfonated cyclized product into a hydrolysis reactor; subjecting the sulfonated cyclized product and a hydrolysis agent preset in the hydrolysis reactor to a hydrolysis reaction to obtain a hydrolysis product solution; and adding potassium hydroxide into an organic phase of the hydrolysate solution for a salt-forming reaction to obtain the acesulfame potassium.
METHOD FOR PREPARING ACESULFAME POTASSIUM
Described herein is a method for preparing acesulfame potassium, comprising: adding triethylamine to a sulfamic acid solution, and carrying out an amination reaction to produce a sulfamic acid ammonium salt solution; adding diketene to the obtained sulfamic acid ammonium salt solution, and under the action of a solid superacid catalyst, carrying out an acylation reaction to obtain an intermediate solution; dissolving sulfur trioxide in a solvent to form a cyclizing agent solution; adding the cyclizing agent solution to the intermediate solution, and carrying out a sulfonation cyclization reaction to obtain a cyclized product solution; adding a hydrolysis agent to the cyclized product solution, and carrying out a hydrolysis reaction to obtain a hydrolysis product solution; and adding a potassium hydroxide solution to the organic phase of the hydrolysis product solution to obtain acesulfame potassium.
METHOD FOR PREPARING ACESULFAME POTASSIUM
Described herein is a method for preparing acesulfame potassium, comprising: adding triethylamine to a sulfamic acid solution, and carrying out an amination reaction to produce a sulfamic acid ammonium salt solution; adding diketene to the obtained sulfamic acid ammonium salt solution, and under the action of a solid superacid catalyst, carrying out an acylation reaction to obtain an intermediate solution; dissolving sulfur trioxide in a solvent to form a cyclizing agent solution; adding the cyclizing agent solution to the intermediate solution, and carrying out a sulfonation cyclization reaction to obtain a cyclized product solution; adding a hydrolysis agent to the cyclized product solution, and carrying out a hydrolysis reaction to obtain a hydrolysis product solution; and adding a potassium hydroxide solution to the organic phase of the hydrolysis product solution to obtain acesulfame potassium.
Taste-modified creatine salts, compounds, compositions and uses thereof
Provided are embodiments of creatine and creatine ethyl ester (CEE) salts where the anion is an artificial (non-saccharide) taste-modifier. These compounds represent stable white non-hygroscopic solids or semisolids that can readily dissolve in water and buffer solutions. Synthesis of novel creatine salts using environmentally safe solvents such as ethanol resulted in the formation of products in quantitative yields with sodium or potassium chloride as a byproduct. The creatine and creatine alkyl eater derivative salts are stable sweet-tasting compounds that are more palatable to a consumer than creatine or derivatives thereof.
Taste-modified creatine salts, compounds, compositions and uses thereof
Provided are embodiments of creatine and creatine ethyl ester (CEE) salts where the anion is an artificial (non-saccharide) taste-modifier. These compounds represent stable white non-hygroscopic solids or semisolids that can readily dissolve in water and buffer solutions. Synthesis of novel creatine salts using environmentally safe solvents such as ethanol resulted in the formation of products in quantitative yields with sodium or potassium chloride as a byproduct. The creatine and creatine alkyl eater derivative salts are stable sweet-tasting compounds that are more palatable to a consumer than creatine or derivatives thereof.
Processes for preparing oxathiazin-like compounds
Oxathiazin-like compounds, processes for making new oxathiazin-like compounds, compounds useful for making oxathiazin-like compounds, and their uses are disclosed. Processes of treating patients suffering from cancers, bacterial infections, fungal infections and/or viral infections by administering oxathiazin-like compounds are also disclosed. These compounds were found to have significantly longer half-life compared to taurolidine and taurultam.
Processes for preparing oxathiazin-like compounds
Oxathiazin-like compounds, processes for making new oxathiazin-like compounds, compounds useful for making oxathiazin-like compounds, and their uses are disclosed. Processes of treating patients suffering from cancers, bacterial infections, fungal infections and/or viral infections by administering oxathiazin-like compounds are also disclosed. These compounds were found to have significantly longer half-life compared to taurolidine and taurultam.
Acesulfame Potassium Compositions and Processes for Producing Same
Improved processes for producing high purity acesulfame potassium. In one embodiment, the process comprises the steps of contacting a solvent, e.g., dichloromethane, and a cyclizing agent, e.g., sulfur trioxide, to form a cyclizing agent composition and reacting an acetoacetamide salt with the cyclizing agent in the composition to form a cyclic sulfur trioxide adduct. The contact time is less than 60 minutes. The process also comprises forming from the cyclic sulfur trioxide adduct composition a finished acesulfame potassium composition comprising non-chlorinated, e.g., non-chlorinated, acesulfame potassium and less than 35 wppm 5-halo acesulfame potassium, preferably less than 5 wppm.
Acesulfame Potassium Compositions and Processes for Producing Same
Improved processes for producing high purity acesulfame potassium. In one embodiment, the process comprises the steps of contacting a solvent, e.g., dichloromethane, and a cyclizing agent, e.g., sulfur trioxide, to form a cyclizing agent composition and reacting an acetoacetamide salt with the cyclizing agent in the composition to form a cyclic sulfur trioxide adduct. The contact time is less than 60 minutes. The process also comprises forming from the cyclic sulfur trioxide adduct composition a finished acesulfame potassium composition comprising non-chlorinated, e.g., non-chlorinated, acesulfame potassium and less than 35 wppm 5-halo acesulfame potassium, preferably less than 5 wppm.