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GB1321280A - Process for the production of 3-methylisoxazole - Google Patents

Process for the production of 3-methylisoxazole

Info

Publication number
GB1321280A
GB1321280A GB5496870A GB5496870A GB1321280A GB 1321280 A GB1321280 A GB 1321280A GB 5496870 A GB5496870 A GB 5496870A GB 5496870 A GB5496870 A GB 5496870A GB 1321280 A GB1321280 A GB 1321280A
Authority
GB
United Kingdom
Prior art keywords
methylisoxazole
reacting
soln
nov
iii
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
GB5496870A
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.)
Huels AG
Original Assignee
Chemische Werke Huels 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 Chemische Werke Huels AG filed Critical Chemische Werke Huels AG
Publication of GB1321280A publication Critical patent/GB1321280A/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
    • C07D261/02—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings
    • C07D261/04—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D261/00—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings
    • C07D261/02—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings
    • C07D261/06—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings having two or more double bonds between ring members or between ring members and non-ring members
    • C07D261/08—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings having two or more double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms

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

1321280 3-methylisoxazole CHEMISCHE WERKE HULS AG 19 Nov 1970 [20 Nov 1969] 54968/70 Heading C2C A process for the preparation of 3-methylisoxazole (I) comprises (a) forming 4,4-dimethoxybutane-2-one oxime (II) by reacting the ketone with a salt of NH 2 OH in aq. soln. at pH 7-12, and 20-120‹ C.; (b) reacting II with MeOH containing 0À5-10 wt. per cent H 2 SO 4 at 10-80‹C., to give 3-methyl-5-methoxyisoxazoline (III); and (c) reacting III in aq. soln. at pH below 2, and 20-120‹ C. In a modification, II is reacted with MeOH containing 1-10 wt. per cent HCl at 20-80‹ C., to form I directly.
GB5496870A 1969-11-20 1970-11-19 Process for the production of 3-methylisoxazole Expired GB1321280A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691958252 DE1958252A1 (en) 1969-11-20 1969-11-20 Process for the preparation of 3-methylisoxazole

Publications (1)

Publication Number Publication Date
GB1321280A true GB1321280A (en) 1973-06-27

Family

ID=5751600

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5496870A Expired GB1321280A (en) 1969-11-20 1970-11-19 Process for the production of 3-methylisoxazole

Country Status (4)

Country Link
CH (1) CH532070A (en)
DE (1) DE1958252A1 (en)
FR (1) FR2069315A5 (en)
GB (1) GB1321280A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984001774A1 (en) * 1982-10-26 1984-05-10 Cheminova As A process for the preparation of 3-hydroxy-isoxazolole

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59190977A (en) * 1983-04-12 1984-10-29 Sankyo Co Ltd Method for producing continuously 3-hydroxy-5- methylisoxazole

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984001774A1 (en) * 1982-10-26 1984-05-10 Cheminova As A process for the preparation of 3-hydroxy-isoxazolole

Also Published As

Publication number Publication date
DE1958252A1 (en) 1971-05-27
CH532070A (en) 1972-12-31
FR2069315A5 (en) 1971-09-03

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees