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150 results about "Theobromine" patented technology

Theobromine, formerly known as xantheose, is a bitter alkaloid of the cacao plant, with the chemical formula C₇H₈N₄O₂. It is found in chocolate, as well as in a number of other foods, including the leaves of the tea plant, and the kola nut. It is classified as a xanthine alkaloid, others of which include theophylline and caffeine. Caffeine differs from the compounds in that it has an extra methyl group (see under Pharmacology section).

Theobromine production process

The invention provides a new method for preparing a theobromine by a 3-methyl xanthine disodium salt methylation with more production value. The theobromine is prepared by using acetone as a solvent to react with a dimethyl sulfate under the existence of a sodium carbonate and then acidified. The invention uses the acetone as the solvent and decreases the hydrolysis loss of the dimethyl sulfate; the sodium carbonate provides an alkaline condition for the methylation reaction and the Ph value is intermediate. The dimethyl sulfate is dropped to carry out the methylation reaction with the advantages of good selectivity and a yield higher than other methylation technique by more than 10 percent. The acetone is recycled and reused, the reaction is relatively complete and has little caffeine by-product, and the acquired analysis content of theobromine crude product HPLC is larger than 90 percent. The invention is extremely applicable to industrial production.The invention relates to a refining method of santheose, which is characterized in that dissolves liquid alkali into crude santheose solution, decolourizes, fitlers, and adds reduction agent into filter liquor, acidifies at 60-80 DEG C until pH=5-6, filters and dries to obtain santheose final product. The inventive method has refining yield of 90%, standard product color, high product quality, low cost and industrialization suitability.
Owner:PERRIGO TRADING (SHANGHAI) CO LTD
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