Preparation method of vitamin D

A vitamin and solution technology, applied in organic chemistry methods, organic chemistry and other directions, can solve the problems of hidden dangers in production safety, high energy consumption, and high equipment costs, and achieve the effects of improving yield, reducing costs, and high utilization of raw materials
CN111116442AInactive Publication Date: 2020-05-08宁波东隆智能科技有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
宁波东隆智能科技有限公司
Publication Date
2020-05-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of vitamin D. The preparation method is characterized in that the method comprises the following steps: dissolving provitamin D in an organic solvent to obtain a solution as a raw material, and carrying out a two-step photocatalytic reaction process, separating and purifying to obtain the vitamin D, wherein the provitamin D is 7-dehydrocholesterol, ergosterol, 22, 23-dehydroergosterol, 7-dehydro-beta-sitosterol, 7-dehydro-stigmasterol or 7-dehydro-campesterol, a lamp used in the first-step photocatalytic reaction is an LED ultraviolet lamp with thewavelength range of 250-260nm, and the lamp used in the second-step photocatalytic reaction is an LED ultraviolet lamp with the wavelength range of 350-380nm. The preparation method of the vitamin D is high in yield.
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Description

technical field

[0001] The invention relates to the technical field of vitamin D, in particular to a preparation method of vitamin D. Background technique

[0002] Vitamin D (vitamin D) is a sterol derivative obtained from different provitamin D after ultraviolet irradiation. Vitamin D is a fat-soluble vitamin, and vitamin D is one of the most important vitamins in the human body. Its main function is to promote the absorption of calcium and phosphorus by intestinal mucosal cells, thereby preventing rickets, promoting the growth and differentiation of skin cells, and regulating immune function. .

[0003] Members of the vitamin D family include vitamin D 2 、D 3 、D 4 、D 5 、D 6 、D 7 , among which, the most important member of vitamin D family members is vitamin D 2 (ergocalciferol) and vitamin D 3 (cholecalciferol). Pre-vitamin D is an intermediate of vitamin D, and the one-to-one correspondence of the above-mentioned vitamin D is pre-vitamin D 2 、D 3 、D 4 、D 5 、...

Claims

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