IES20180203A2 - Chlormadinone drug intermediates o-tetrachlorobenzoquinone synthesis method - Google Patents

Chlormadinone drug intermediates o-tetrachlorobenzoquinone synthesis method

Info

Publication number
IES20180203A2
IES20180203A2 IES20180203A IES20180203A2 IE S20180203 A2 IES20180203 A2 IE S20180203A2 IE S20180203 A IES20180203 A IE S20180203A IE S20180203 A2 IES20180203 A2 IE S20180203A2
Authority
IE
Ireland
Prior art keywords
solution
temperature
tetrachlorobenzoquinone
several times
chlormadinone
Prior art date
Application number
Inventor
Guan Genan
Original Assignee
Chengdu Qianye Longhua Petroleum Engineering Tech Consulting Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chengdu Qianye Longhua Petroleum Engineering Tech Consulting Co Ltd filed Critical Chengdu Qianye Longhua Petroleum Engineering Tech Consulting Co Ltd
Publication of IES20180203A2 publication Critical patent/IES20180203A2/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)

Abstract

The present invention discloses chlormadinone drug intermediates o-tetrachlorobenzoquinone synthesis method, comprises the following steps:2,3-dihydroxy-4,5,6-trichloro-aniline, cyclohexane solution is added to the reaction vessel, slowly raising the temperature, raising the temperature, then adds potassium sulfate solution, reacts; continues to add the 2,3-dichloropropene solution,reduces the temperature, adds tricarbonyl menthyl manganese in batches, controls the stirring speed, continues to react, then the solution layers, the temperature is decreased, washed several times with sodium chloride solution, several times with ethylene oxide solution, several times with 1,4-dichlorobutane solution, recrystallized in dichloropentane solution, dehydrated with dehydrating agent, got the finished producto-tetrachlorobenzoquinone. <Figure 1>
IES20180203 2017-08-19 2018-06-26 Chlormadinone drug intermediates o-tetrachlorobenzoquinone synthesis method IES20180203A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710706464.8A CN108238886A (en) 2017-08-19 2017-08-19 The synthetic method of chlormadinone pharmaceutical intermediate neighbour's tetrachloroquinone

Publications (1)

Publication Number Publication Date
IES20180203A2 true IES20180203A2 (en) 2019-11-13

Family

ID=60037134

Family Applications (1)

Application Number Title Priority Date Filing Date
IES20180203 IES20180203A2 (en) 2017-08-19 2018-06-26 Chlormadinone drug intermediates o-tetrachlorobenzoquinone synthesis method

Country Status (4)

Country Link
CN (1) CN108238886A (en)
AU (1) AU2018100844A4 (en)
GB (1) GB201713868D0 (en)
IE (1) IES20180203A2 (en)

Also Published As

Publication number Publication date
CN108238886A (en) 2018-07-03
AU2018100844A4 (en) 2018-08-09
GB201713868D0 (en) 2017-10-11

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Legal Events

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