CH615147A5 - - Google Patents
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- Publication number
- CH615147A5 CH615147A5 CH839975A CH839975A CH615147A5 CH 615147 A5 CH615147 A5 CH 615147A5 CH 839975 A CH839975 A CH 839975A CH 839975 A CH839975 A CH 839975A CH 615147 A5 CH615147 A5 CH 615147A5
- Authority
- CH
- Switzerland
- Prior art keywords
- nitrite
- acid
- solution
- added
- hydrochloric acid
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
- C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
- C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
- C07D333/06—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring carbon atoms
- C07D333/24—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/27—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with oxides of nitrogen or nitrogen-containing mineral acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/38—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D307/54—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
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)
- Heterocyclic Compounds Containing Sulfur Atoms (AREA)
- Furan Compounds (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB28867/74A GB1503649A (en) | 1974-06-28 | 1974-06-28 | Process for the preparation of alpha-keto acids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH615147A5 true CH615147A5 (nl) | 1980-01-15 |
Family
ID=10282438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH839975A CH615147A5 (nl) | 1974-06-28 | 1975-06-27 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4013680A (nl) |
| JP (1) | JPS5946935B2 (nl) |
| BE (1) | BE830781A (nl) |
| CH (1) | CH615147A5 (nl) |
| DE (1) | DE2528786A1 (nl) |
| FR (1) | FR2276283A1 (nl) |
| GB (1) | GB1503649A (nl) |
| NL (1) | NL7507668A (nl) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2387978A1 (fr) * | 1977-04-19 | 1978-11-17 | Hoechst France | Procede de fabrication du thienyl-2 acetate de methyle |
| GB8609452D0 (en) * | 1986-04-17 | 1986-05-21 | Ici Plc | Fungicides |
| JPH02155241A (ja) * | 1988-12-07 | 1990-06-14 | Matsushita Electric Ind Co Ltd | リードフレームの送出装置 |
| JPH07504656A (ja) * | 1992-03-13 | 1995-05-25 | ヘキスト・セラニーズ・コーポレーション | 置換および非置換フェニルグリオキサールを対応する置換および非置換アセトフェノンから製造する方法 |
| US5319142A (en) * | 1992-10-06 | 1994-06-07 | Hoechst Celanese Corporation | Process for preparing substituted and unsubstituted arylalkylamines |
| US5939581A (en) * | 1997-08-20 | 1999-08-17 | First Chemical Corporation | Processes for preparing hydrocinnamic acid |
| IT1297038B1 (it) * | 1997-12-30 | 1999-08-03 | Medidom Lab | Procedimento per la preparazione di reina e suoi diacilderivati |
| US6274766B1 (en) * | 1999-05-19 | 2001-08-14 | Bayer Corporation | Process for purifying α-keto acids |
| CN110590719B (zh) * | 2019-08-15 | 2022-04-19 | 安徽金禾实业股份有限公司 | 一种制备2-呋喃乙酮酸的绿色方法 |
-
1974
- 1974-06-28 GB GB28867/74A patent/GB1503649A/en not_active Expired
-
1975
- 1975-06-18 US US05/587,813 patent/US4013680A/en not_active Expired - Lifetime
- 1975-06-27 NL NL7507668A patent/NL7507668A/nl not_active Application Discontinuation
- 1975-06-27 JP JP50079472A patent/JPS5946935B2/ja not_active Expired
- 1975-06-27 BE BE157803A patent/BE830781A/xx not_active IP Right Cessation
- 1975-06-27 DE DE19752528786 patent/DE2528786A1/de not_active Withdrawn
- 1975-06-27 FR FR7520242A patent/FR2276283A1/fr active Granted
- 1975-06-27 CH CH839975A patent/CH615147A5/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| BE830781A (fr) | 1975-12-29 |
| DE2528786A1 (de) | 1976-01-15 |
| US4013680A (en) | 1977-03-22 |
| NL7507668A (nl) | 1975-12-30 |
| FR2276283B1 (nl) | 1980-07-18 |
| JPS5946935B2 (ja) | 1984-11-15 |
| JPS5123238A (en) | 1976-02-24 |
| GB1503649A (en) | 1978-03-15 |
| FR2276283A1 (fr) | 1976-01-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PFA | Name/firm changed |
Owner name: GLAXO OPERATIONS UK LIMITED |
|
| PL | Patent ceased |