BE787367A - Procede de preparation de tetraalkylpyrazines et produits obtenus - Google Patents
Procede de preparation de tetraalkylpyrazines et produits obtenusInfo
- Publication number
- BE787367A BE787367A BE787367A BE787367A BE787367A BE 787367 A BE787367 A BE 787367A BE 787367 A BE787367 A BE 787367A BE 787367 A BE787367 A BE 787367A BE 787367 A BE787367 A BE 787367A
- Authority
- BE
- Belgium
- Prior art keywords
- tetraalkylpyrazines
- preparing
- products obtained
- products
- preparing tetraalkylpyrazines
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
- C07D241/02—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings
- C07D241/10—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D241/12—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having three 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
- C07D241/36—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems
- C07D241/38—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems with only hydrogen or carbon atoms directly attached to the ring nitrogen atoms
- C07D241/46—Phenazines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2140649A DE2140649C3 (de) | 1971-08-13 | 1971-08-13 | Verfahren zur Herstellung von Tetraalkylpyrazinen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE787367A true BE787367A (fr) | 1972-12-01 |
Family
ID=5816696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE787367A BE787367A (fr) | 1971-08-13 | 1972-08-09 | Procede de preparation de tetraalkylpyrazines et produits obtenus |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3925378A (xx) |
| JP (1) | JPS4828478A (xx) |
| BE (1) | BE787367A (xx) |
| CH (1) | CH572045A5 (xx) |
| DE (1) | DE2140649C3 (xx) |
| FR (1) | FR2150092A5 (xx) |
| GB (1) | GB1382468A (xx) |
| NL (1) | NL7211045A (xx) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4064124A (en) * | 1974-05-25 | 1977-12-20 | Basf Aktiengesellschaft | Manufacture of pyrazines |
| JPS5337675A (en) | 1976-09-20 | 1978-04-06 | Tokai Electro Chemical Co | Production of pyrazines |
| US4855431A (en) * | 1983-01-13 | 1989-08-08 | Mobil Oil Corp. | Process for making alkyl pyrazines |
| US4788289A (en) * | 1986-10-24 | 1988-11-29 | Texaco Inc. | Process for preparing pyrazines from hydroxyamines |
| US5304648A (en) * | 1992-09-29 | 1994-04-19 | Nestec S.A. | Pyrazine preparation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2813869A (en) * | 1957-03-29 | 1957-11-19 | Wyandotte Chemicals Corp | Vapor phase synthesis of carbon-substituted pyrazines and piperazines |
-
1971
- 1971-08-13 DE DE2140649A patent/DE2140649C3/de not_active Expired
-
1972
- 1972-08-09 BE BE787367A patent/BE787367A/xx unknown
- 1972-08-10 JP JP47079570A patent/JPS4828478A/ja active Pending
- 1972-08-10 CH CH1182472A patent/CH572045A5/xx not_active IP Right Cessation
- 1972-08-11 US US280015A patent/US3925378A/en not_active Expired - Lifetime
- 1972-08-11 GB GB3763772A patent/GB1382468A/en not_active Expired
- 1972-08-11 FR FR7229135A patent/FR2150092A5/fr not_active Expired
- 1972-08-11 NL NL7211045A patent/NL7211045A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2150092A5 (xx) | 1973-03-30 |
| USB280015I5 (xx) | 1975-01-28 |
| GB1382468A (en) | 1975-01-29 |
| NL7211045A (xx) | 1973-02-15 |
| DE2140649B2 (de) | 1980-06-04 |
| JPS4828478A (xx) | 1973-04-14 |
| DE2140649A1 (de) | 1973-02-22 |
| DE2140649C3 (de) | 1981-02-19 |
| CH572045A5 (xx) | 1976-01-30 |
| US3925378A (en) | 1975-12-09 |
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