GB736388A - Novel derivatives of methylene bis-(hydroxy-4-coumarin)-3,3 - Google Patents
Novel derivatives of methylene bis-(hydroxy-4-coumarin)-3,3Info
- Publication number
- GB736388A GB736388A GB25434/53A GB2543453A GB736388A GB 736388 A GB736388 A GB 736388A GB 25434/53 A GB25434/53 A GB 25434/53A GB 2543453 A GB2543453 A GB 2543453A GB 736388 A GB736388 A GB 736388A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coumarin
- hydroxy
- methylene bis
- novel derivatives
- roch2
- 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
- C07D311/42—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4
- C07D311/44—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3
- C07D311/46—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3 unsubstituted in the carbocyclic ring
- C07D311/48—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3 unsubstituted in the carbocyclic ring with two such benzopyran radicals linked together by a carbon chain
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyrane Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
Abstract
The invention comprises compounds of formula <FORM:0736388/IV (b)/1> wherein R is an alkyl group. The compounds are prepared by condensing 4-hydroxy-coumarin with a compound of formula ROCH2-CHO or an acetal thereof, preferably ROCH2-CH(OC2H5)2. The examples describe the preparation of methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy and isobutoxy ethylidene 3,31-bis-(4-hydroxycoumarin).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL736388X | 1952-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB736388A true GB736388A (en) | 1955-09-07 |
Family
ID=19820413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25434/53A Expired GB736388A (en) | 1952-10-15 | 1953-09-15 | Novel derivatives of methylene bis-(hydroxy-4-coumarin)-3,3 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE522570A (en) |
| DE (1) | DE964599C (en) |
| FR (1) | FR1090729A (en) |
| GB (1) | GB736388A (en) |
| NL (1) | NL80005C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3358031A (en) * | 1966-02-09 | 1967-12-12 | Monsanto Co | Substituted benzylidene cyclohexanediones |
-
0
- BE BE522570D patent/BE522570A/xx unknown
- NL NL80005D patent/NL80005C/xx active
-
1953
- 1953-09-15 GB GB25434/53A patent/GB736388A/en not_active Expired
- 1953-10-07 FR FR1090729D patent/FR1090729A/en not_active Expired
- 1953-10-15 DE DEN7892A patent/DE964599C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE964599C (en) | 1957-05-23 |
| BE522570A (en) | |
| NL80005C (en) | |
| FR1090729A (en) | 1955-04-04 |
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