CAS: 16063-70-0; 2,3,5-Trichloropyridine

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五氯吡啶置于ammonium Hydroxide体系中,用 甲苯 用作溶剂,化学反应生成2,3,5-三氯吡啶
参考文献:Preparation Of 2,3,5-Trichloropyridine
标题:Preparation Of 2,3,5-Trichloropyridine
摘要:2,3,5-三氯吡啶是通过在强碱性水溶液和不溶于水的反应介质存在下,将五氯吡啶或2,3,5,6-四氯吡啶与金属锌直接反应制备而成.

专利信息

专利号:US-2023286918-A1
优先权日:2020-07-02
标 题:Manufacturing process for 3,5-dichloropicolinonitrile for synthesis of vadadustat
发明人：JURKAUSKAS VALDAS; JUNG YOUNG CHUN; KWON TAESOO; KANNAN ARUNACHALAM; GONDI VIJAYA BHASKER
权利人:AKEBIA THERAPEUTICS INC
摘要:Disclosed herein are methods and processes of preparing vadadustat or a pharmaceutically acceptable salts thereof, and intermediates (e.g., a compound of Formula (I), (I-F), (II), or (IV), or a pharmaceutically acceptable salts thereof) useful for the synthesis of vadadustat.

专利号:US-5053516-A
优先权日:1984-05-23
标题 :Synthesis of 2-substituted-5-methylpyridines from methylcyclobutanecarbonitrile, valeronitrile and pentenonitrile intermediates
发明人：HARTMANN LUDWIG A; STEPHEN JOHN F
权利人:ICI AMERICA INC
摘要:3-Methyl-2-alkylamino-1-halo-1-cyano cyclobutanes are cleaved under acid conditions to form 2-halo-4-formylvaleronitrile and 4-formyl-2-pentenonitrile which can be cyclized to form 2-substituted-5-methylpyridine derivatives. These pyridine derivatives are useful as starting materials in the manufacture of herbicides such as fluazifop-butyl.

专利号:CN-108435240-A
优先权日:2017-02-16
标 题 :A kind of preparation method of supported catalyst cuprous oxide for synthesis of 2,3,5-trichloropyridine

专利号:WO-2022006427-A1
优先权日:2020-07-02
标题:Manufacturing process for 3,5-dichloropicolinonitrile for synthesis of vadadustat

专利号:CN-117531235-B
优先权日:2023-12-26
标 题 :Device for accelerating synthesis of 2,3, 5-trichloropyridine intermediate

专利号:EP-0162464-B1
优先权日:1984-05-23
标题 :Synthesis of 2-substituted-5-methylpyridines from methylcyclo-butanecarbonitrile, valeronitrile and pentenonitrile intermediates