- Reducing dehalogenating method of organic halogenated compound
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The invention discloses a reducing dehalogenating method of an organic halogenated compound. The reducing dehalogenating method comprises: mixing an organic halogenated compound R-X, a non-noble metalpromoter, a sulfide and an alkali, and carrying out a reducing dehalogenating reaction to obtain a reducing product R-H, wherein R is at least one selected from alkyl and aryl, and X is at least oneselected from iodine, bromine and chlorine. According to the present invention, the types and the ratio (especially the specific type of the promoter) of various raw materials used in the reducing dehalogenating reaction, the corresponding reaction conditions and the like are researched and improved, such that the problems of use of highly-toxic or expensive reagent, poor tolerance of the group, narrow application range of the substrate and the like in the prior art can be effectively solved.
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Paragraph 0099; 0100; 0102; 0124; 0129; 0130
(2019/02/10)
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- Synthesis of betamethasone from the waste of Thai Agave sisalana
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Synthesis of betamethasone from waste of Thai A. sisalana is described. Copyright Taylor & Francis Group, LLC.
- Kongkathip, Ngampong,Kongkathip, Boonsong,Noimai, Naratitt
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p. 865 - 874
(2007/10/03)
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- 16-Methyl-9α-halo steroid esters, ethers and preparation thereof
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New 16-methyl-9α-halo corticosteroid esters and ethers having high topical anti-inflammatory potency and low systemic activity and the manner in which they can be produced are described.
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