IES20180088A2 - Drugs intermediates 2-ethylhexanoic acid synthesis method - Google Patents

Drugs intermediates 2-ethylhexanoic acid synthesis method

Info

Publication number
IES20180088A2
IES20180088A2 IES20180088A IES20180088A IES20180088A2 IE S20180088 A2 IES20180088 A2 IE S20180088A2 IE S20180088 A IES20180088 A IE S20180088A IE S20180088 A IES20180088 A IE S20180088A IE S20180088 A2 IES20180088 A2 IE S20180088A2
Authority
IE
Ireland
Prior art keywords
solution
ethylhexanoic acid
synthesis method
acid synthesis
extracted
Prior art date
Application number
IES20180088A
Inventor
Yan Yida
Original Assignee
Chengdu Dong Dian Ai Er Tech 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 Dong Dian Ai Er Tech Co Ltd filed Critical Chengdu Dong Dian Ai Er Tech Co Ltd
Publication of IES20180088A2 publication Critical patent/IES20180088A2/en
Publication of IES86993B2 publication Critical patent/IES86993B2/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00Preparation of carboxylic acids or their salts, halides or anhydrides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Drugs intermediates 2-ethylhexanoic acid synthesis method, comprises the following steps: 3 mol 1-amino-2-bromo-3-ethylheptene, 4-5 mol dimethyl fumarate solution were added to the reaction vessel, controlled the stirring speed at 130-160 rpm, raised the temperature of the solution to 40-48°C, reacted for 2-3 h, washed with potassium nitrate solution for 4-6 times, adjusted the pH to 3-4 with potassium hydrogen sulfate solution, after the solution layered, extracted 5-7 times by 1,3-propanediamine solution, extracted 6-9 times by propylene glycol methyl ether solution, recrystallized from N-propylaniline solution, obtained 2-ethylhexanoic acid.
IES20180088A 2017-04-05 2018-04-03 Drugs intermediates 2-ethylhexanoic acid synthesis method IES86993B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710215504.9A CN108238892A (en) 2017-04-05 2017-04-05 A kind of synthetic method of pharmaceutical intermediate 2 ethyl hexanoic acid

Publications (2)

Publication Number Publication Date
IES20180088A2 true IES20180088A2 (en) 2019-04-03
IES86993B2 IES86993B2 (en) 2019-05-01

Family

ID=59220567

Family Applications (1)

Application Number Title Priority Date Filing Date
IES20180088A IES86993B2 (en) 2017-04-05 2018-04-03 Drugs intermediates 2-ethylhexanoic acid synthesis method

Country Status (4)

Country Link
CN (1) CN108238892A (en)
AU (1) AU2018100422A4 (en)
GB (1) GB201708118D0 (en)
IE (1) IES86993B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109134538B (en) * 2018-09-25 2021-05-14 万华化学集团股份有限公司 Iodophosphine oxide ligands, method for the production thereof, complexes, catalyst systems comprising the complexes and use thereof

Also Published As

Publication number Publication date
AU2018100422A4 (en) 2018-05-17
IES86993B2 (en) 2019-05-01
GB201708118D0 (en) 2017-07-05
CN108238892A (en) 2018-07-03

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