DE2327437C2 - Verfahren zur Herstellung von Cumarin und 6-Methylcumarin - Google Patents
Verfahren zur Herstellung von Cumarin und 6-MethylcumarinInfo
- Publication number
- DE2327437C2 DE2327437C2 DE2327437A DE2327437A DE2327437C2 DE 2327437 C2 DE2327437 C2 DE 2327437C2 DE 2327437 A DE2327437 A DE 2327437A DE 2327437 A DE2327437 A DE 2327437A DE 2327437 C2 DE2327437 C2 DE 2327437C2
- Authority
- DE
- Germany
- Prior art keywords
- coumarin
- dihydrocoumarin
- catalyst
- amount
- methylcoumarin
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/06—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2
- C07D311/08—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Pyrane Compounds (AREA)
- Insertion Pins And Rivets (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NLAANVRAGE7208529,A NL173403C (nl) | 1972-06-22 | 1972-06-22 | Werkwijze voor de bereiding van cumarine of een methylcumarine. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2327437A1 DE2327437A1 (de) | 1974-01-17 |
| DE2327437C2 true DE2327437C2 (de) | 1986-11-13 |
Family
ID=19816324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2327437A Expired DE2327437C2 (de) | 1972-06-22 | 1973-05-29 | Verfahren zur Herstellung von Cumarin und 6-Methylcumarin |
Country Status (11)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5214160A (en) * | 1990-06-02 | 1993-05-25 | Givaudan Corporation | Acetyl-tri-and-tetramethyl-octahydronaphthalenes and fragrance compositions containing same |
| JP3079695B2 (ja) * | 1991-10-24 | 2000-08-21 | 住友化学工業株式会社 | クマリン類の製造方法 |
| IT1269984B (it) * | 1994-09-20 | 1997-04-16 | Caffaro Spa Ind Chim | Procedimento per la preparazione della cumarina e dei suoi derivati |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3442910A (en) * | 1967-06-22 | 1969-05-06 | Eastman Kodak Co | Preparation of hydrocoumarin,coumarin and alkyl substituted derivatives |
| US3521187A (en) * | 1967-09-18 | 1970-07-21 | Eastman Kodak Co | Laser media containing coumarin dye solutions |
| US3631067A (en) * | 1970-01-05 | 1971-12-28 | Dow Chemical Co | Preparation of coumarin |
-
1972
- 1972-06-22 NL NLAANVRAGE7208529,A patent/NL173403C/xx not_active IP Right Cessation
-
1973
- 1973-05-29 DE DE2327437A patent/DE2327437C2/de not_active Expired
- 1973-05-29 GB GB2545273A patent/GB1368941A/en not_active Expired
- 1973-05-30 CA CA172,732A patent/CA1001638A/en not_active Expired
- 1973-06-15 IT IT50828/73A patent/IT985478B/it active
- 1973-06-18 JP JP48068615A patent/JPS596874B2/ja not_active Expired
- 1973-06-19 ES ES160049A patent/ES160049A1/es not_active Expired
- 1973-06-19 BE BE132429A patent/BE801112A/xx not_active IP Right Cessation
- 1973-06-19 ES ES0416049A patent/ES416049A1/es not_active Expired
- 1973-06-19 CH CH888273A patent/CH579559A5/xx not_active IP Right Cessation
- 1973-06-21 FR FR7322643A patent/FR2189399B1/fr not_active Expired
- 1973-06-22 US US00372507A patent/US3856819A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ES160049A1 (es) | 1976-03-01 |
| FR2189399B1 (US06534493-20030318-C00166.png) | 1976-11-12 |
| NL7208529A (US06534493-20030318-C00166.png) | 1973-12-27 |
| NL173403B (nl) | 1983-08-16 |
| US3856819A (en) | 1974-12-24 |
| JPS596874B2 (ja) | 1984-02-15 |
| NL173403C (nl) | 1984-01-16 |
| CH579559A5 (US06534493-20030318-C00166.png) | 1976-09-15 |
| DE2327437A1 (de) | 1974-01-17 |
| JPS4962472A (US06534493-20030318-C00166.png) | 1974-06-17 |
| GB1368941A (en) | 1974-10-02 |
| IT985478B (it) | 1974-11-30 |
| BE801112A (fr) | 1973-12-19 |
| FR2189399A1 (US06534493-20030318-C00166.png) | 1974-01-25 |
| CA1001638A (en) | 1976-12-14 |
| ES416049A1 (es) | 1976-03-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| 8128 | New person/name/address of the agent |
Representative=s name: ASSMANN, E., DIPL.-CHEM. DR.RER.NAT. ZUMSTEIN, F., |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |