KR970042509A - Method for preparing 2,6-dichloro-5-fluoronicotinic acid - Google Patents
Method for preparing 2,6-dichloro-5-fluoronicotinic acid Download PDFInfo
- Publication number
- KR970042509A KR970042509A KR1019950058700A KR19950058700A KR970042509A KR 970042509 A KR970042509 A KR 970042509A KR 1019950058700 A KR1019950058700 A KR 1019950058700A KR 19950058700 A KR19950058700 A KR 19950058700A KR 970042509 A KR970042509 A KR 970042509A
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- KR
- South Korea
- Prior art keywords
- compound
- sulfuric acid
- concentrated sulfuric
- preparing
- water
- Prior art date
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- Pyridine Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
본 발명은 구조식(1)의 화합물을 진한 황산과 물로 처리하여 가수분해시킴을 특징으로 하여 1,8-나프티리딘퀴놀론계 항생제의 제조시에 중간체로 유용한 구조식(2)의 화합물을 간편하게 부산물이 없이 고수율로 제조하는 방법에 관한 것이다.The present invention is characterized in that the compound of formula (1) is hydrolyzed by treatment with concentrated sulfuric acid and water, so that the compound of formula (2), which is useful as an intermediate in the preparation of 1,8-naphthyridinequinolone antibiotics, is simply free of by-products. It relates to a process for producing in high yield.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950058700A KR0177618B1 (en) | 1995-12-27 | 1995-12-27 | Process for preparation of 2,6-dichloro-5-fluoronicotinic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950058700A KR0177618B1 (en) | 1995-12-27 | 1995-12-27 | Process for preparation of 2,6-dichloro-5-fluoronicotinic acid |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970042509A true KR970042509A (en) | 1997-07-24 |
KR0177618B1 KR0177618B1 (en) | 1999-03-20 |
Family
ID=19445056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950058700A KR0177618B1 (en) | 1995-12-27 | 1995-12-27 | Process for preparation of 2,6-dichloro-5-fluoronicotinic acid |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0177618B1 (en) |
-
1995
- 1995-12-27 KR KR1019950058700A patent/KR0177618B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR0177618B1 (en) | 1999-03-20 |
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