RO62622A - PROCESS FOR THE PREPARATION OF 1-HYDROXY-2-PYRIDONES - Google Patents

PROCESS FOR THE PREPARATION OF 1-HYDROXY-2-PYRIDONES

Info

Publication number
RO62622A
RO62622A RO7300074280A RO7428073A RO62622A RO 62622 A RO62622 A RO 62622A RO 7300074280 A RO7300074280 A RO 7300074280A RO 7428073 A RO7428073 A RO 7428073A RO 62622 A RO62622 A RO 62622A
Authority
RO
Romania
Prior art keywords
pyridones
hydroxy
preparation
Prior art date
Application number
RO7300074280A
Other languages
French (fr)
Romanian (ro)
Inventor
Gerhard Lohaus
Walter Dittmar
Original Assignee
Hoechst 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
Priority claimed from DE19722214608 external-priority patent/DE2214608C3/en
Application filed by Hoechst Ag filed Critical Hoechst Ag
Publication of RO62622A publication Critical patent/RO62622A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/89—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members with hetero atoms directly attached to the ring nitrogen atom
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/04—Antibacterial agents
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D221/00—Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00
    • C07D221/02—Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00 condensed with carbocyclic rings or ring systems
    • C07D221/04—Ortho- or peri-condensed ring systems
    • C07D221/06—Ring systems of three rings
    • C07D221/10—Aza-phenanthrenes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D221/00—Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00
    • C07D221/02—Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00 condensed with carbocyclic rings or ring systems
    • C07D221/20—Spiro-condensed ring systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Communicable Diseases (AREA)
  • Animal Behavior & Ethology (AREA)
  • Oncology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pyridine Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)
  • Medicinal Preparation (AREA)
RO7300074280A 1972-03-25 1973-03-23 PROCESS FOR THE PREPARATION OF 1-HYDROXY-2-PYRIDONES RO62622A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722214608 DE2214608C3 (en) 1972-03-25 Process for the preparation of J-hydroxy-2-pyridones

Publications (1)

Publication Number Publication Date
RO62622A true RO62622A (en) 1978-05-15

Family

ID=5840130

Family Applications (1)

Application Number Title Priority Date Filing Date
RO7300074280A RO62622A (en) 1972-03-25 1973-03-23 PROCESS FOR THE PREPARATION OF 1-HYDROXY-2-PYRIDONES

Country Status (27)

Country Link
JP (1) JPS5233B2 (en)
KR (1) KR780000095B1 (en)
AR (1) AR219038A1 (en)
AT (1) AT327190B (en)
BE (1) BE797346A (en)
BG (2) BG22817A3 (en)
CA (1) CA979449A (en)
CH (1) CH579050A5 (en)
CS (1) CS183686B2 (en)
DD (1) DD105612A5 (en)
DK (1) DK139966C (en)
EG (1) EG10850A (en)
ES (1) ES412847A1 (en)
FI (1) FI55331C (en)
FR (1) FR2177963B1 (en)
GB (1) GB1416397A (en)
HU (1) HU166579B (en)
MY (1) MY7800114A (en)
NL (1) NL175177C (en)
NO (1) NO139861C (en)
PH (1) PH9480A (en)
PL (1) PL91738B1 (en)
RO (1) RO62622A (en)
SE (1) SE383151B (en)
SU (1) SU468418A3 (en)
YU (1) YU35583B (en)
ZA (1) ZA732042B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4178242A (en) * 1975-11-11 1979-12-11 Anic S.P.A. Method for the purification of sewage waters which contain organic compounds of an anionic character
JPS5323145A (en) * 1976-07-20 1978-03-03 Kurita Water Ind Ltd Method of dehydrating sludge
JPS54144759A (en) * 1978-04-29 1979-11-12 Tobata Tekko Kk Method of decoloring waste water containing dyestuffs
GB8325496D0 (en) * 1983-09-23 1983-10-26 Hider R C Pharmaceutical compositions
US4912118A (en) * 1983-09-23 1990-03-27 National Research Development Corporation Pharmaceutical compositions
USRE34313E (en) * 1983-09-23 1993-07-13 National Research Development Corporation Pharmaceutical compositions
US5817825A (en) * 1994-11-02 1998-10-06 Hoechst Aktiengesellschaft Process for the preparation of 1-hydroxy-2-pyridones
JP4556241B2 (en) * 2003-02-05 2010-10-06 日本曹達株式会社 Novel 6-fluoroalkyl-2 (1H) -pyridinone, 6-fluoroalkylpyridine compound and process for producing the same
CN112351970A (en) * 2018-05-30 2021-02-09 科莱恩国际有限公司 Method for forming 2-hydroxypyridine-1-oxide or derivative thereof
EP4122918A1 (en) * 2021-07-19 2023-01-25 Clariant International Ltd Process for the preparation of n-hydroxypyridone compounds
WO2024104987A2 (en) * 2022-11-16 2024-05-23 Clariant International Ltd Process for the crystallization or precipitation of piroctone
WO2024115319A1 (en) * 2022-11-28 2024-06-06 Clariant International Ltd Process for the preparation of n-hydroxypyridone compounds

Also Published As

Publication number Publication date
DK139966B (en) 1979-05-28
DE2214608B2 (en) 1977-03-31
GB1416397A (en) 1975-12-03
CS183686B2 (en) 1978-07-31
NL175177B (en) 1984-05-01
DE2214608A1 (en) 1973-10-04
SE383151B (en) 1976-03-01
FI55331B (en) 1979-03-30
NO139861C (en) 1979-05-23
YU78473A (en) 1980-09-25
PH9480A (en) 1976-01-08
NO139861B (en) 1979-02-12
ES412847A1 (en) 1976-01-01
NL175177C (en) 1984-10-01
PL91738B1 (en) 1977-03-31
ZA732042B (en) 1974-01-30
CH579050A5 (en) 1976-08-31
HU166579B (en) 1975-04-28
AR219038A1 (en) 1980-07-31
JPS495976A (en) 1974-01-19
YU35583B (en) 1981-04-30
BE797346A (en) 1973-09-26
AT327190B (en) 1976-01-26
MY7800114A (en) 1978-12-31
NL7303870A (en) 1973-09-27
BG22814A3 (en) 1977-04-20
EG10850A (en) 1976-06-30
ATA262473A (en) 1975-04-15
BG22817A3 (en) 1977-04-20
JPS5233B2 (en) 1977-01-05
CA979449A (en) 1975-12-09
KR780000095B1 (en) 1978-04-08
AU5363073A (en) 1974-09-26
FR2177963B1 (en) 1976-11-05
DK139966C (en) 1979-11-05
SU468418A3 (en) 1975-04-25
FR2177963A1 (en) 1973-11-09
FI55331C (en) 1979-07-10
DD105612A5 (en) 1974-05-05

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