GB856393A - A process for the manufacture of 4-amino-isoxazolidone-(3) - Google Patents

A process for the manufacture of 4-amino-isoxazolidone-(3)

Info

Publication number
GB856393A
GB856393A GB13110/59A GB1311059A GB856393A GB 856393 A GB856393 A GB 856393A GB 13110/59 A GB13110/59 A GB 13110/59A GB 1311059 A GB1311059 A GB 1311059A GB 856393 A GB856393 A GB 856393A
Authority
GB
United Kingdom
Prior art keywords
acid
isoxazolidone
amino
strong
reacting
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB13110/59A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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 F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Publication of GB856393A publication Critical patent/GB856393A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D261/00—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings
    • C07D261/20—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings condensed with carbocyclic rings or ring systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)

Abstract

4-amino-isoxazolidone-(3) is prepared by treating a 2-alkoxycarbonyl-ethyleneimine with a strong acid (e.g. hydrochloric acid) in a solvent (which must be a poor solvent, e.g. water, in the case where the alkoxy group may be considered to have been derived from a primary alcohol), and reacting the resulting b -(strong acid anion-substituted)-a -aminocarboxylic acid ester, strong acid addition salt with hydroxylamine and a strong base in the presence of water. 2-Isopropoxycarbonyl-ethyleneinine is prepared by reacting a : b -dibromopropionic acid isopropyl ester with liquid ammonia in the presence of N-phenyl-a -naphthylamine as a stabilizer. Specification 812,830 is referred to.
GB13110/59A 1958-04-26 1959-04-17 A process for the manufacture of 4-amino-isoxazolidone-(3) Expired GB856393A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH856393X 1958-04-26

Publications (1)

Publication Number Publication Date
GB856393A true GB856393A (en) 1960-12-14

Family

ID=4542718

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13110/59A Expired GB856393A (en) 1958-04-26 1959-04-17 A process for the manufacture of 4-amino-isoxazolidone-(3)

Country Status (1)

Country Link
GB (1) GB856393A (en)

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