GB1258033A - - Google Patents
Info
- Publication number
- GB1258033A GB1258033A GB1258033DA GB1258033A GB 1258033 A GB1258033 A GB 1258033A GB 1258033D A GB1258033D A GB 1258033DA GB 1258033 A GB1258033 A GB 1258033A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diketene
- haloacetyl
- pyrans
- halomethyl
- lonza
- 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
- BUDQDWGNQVEFAC-UHFFFAOYSA-N Dihydropyran Chemical class C1COC=CC1 BUDQDWGNQVEFAC-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 abstract 1
- 150000001412 amines Chemical class 0.000 abstract 1
- 239000003153 chemical reaction reagent Substances 0.000 abstract 1
- WASQWSOJHCZDFK-UHFFFAOYSA-N diketene Chemical compound C=C1CC(=O)O1 WASQWSOJHCZDFK-UHFFFAOYSA-N 0.000 abstract 1
- 150000004820 halides Chemical class 0.000 abstract 1
- 230000026030 halogenation Effects 0.000 abstract 1
- 238000005658 halogenation reaction Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 150000003335 secondary amines Chemical class 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/34—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D309/36—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with oxygen atoms directly attached to ring carbon atoms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH810869A CH514573A (de) | 1969-05-29 | 1969-05-29 | Verfahren zur Herstellung von 3-Halogenacetyl-6-halogenmethyl-2,4-dioxo-2,3-dihydro-4-H-pyran |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1258033A true GB1258033A (enrdf_load_stackoverflow) | 1971-12-22 |
Family
ID=4335282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1258033D Expired GB1258033A (enrdf_load_stackoverflow) | 1969-05-29 | 1970-05-27 |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH514573A (enrdf_load_stackoverflow) |
| DE (1) | DE2025572A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2043794A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1258033A (enrdf_load_stackoverflow) |
| NL (1) | NL7007664A (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993006235A1 (en) * | 1991-09-20 | 1993-04-01 | Zeneca Limited | Process for the preparation of enantiomerically pure 4-hydroxytetrahydro-2-pyranone derivatives |
| US6509299B2 (en) | 2001-06-08 | 2003-01-21 | Sumitomo Chemical Company, Limited | Pyrone compounds and there use |
-
1969
- 1969-05-29 CH CH810869A patent/CH514573A/de not_active IP Right Cessation
-
1970
- 1970-05-26 DE DE19702025572 patent/DE2025572A1/de active Pending
- 1970-05-27 GB GB1258033D patent/GB1258033A/en not_active Expired
- 1970-05-27 NL NL7007664A patent/NL7007664A/xx unknown
- 1970-05-29 FR FR7019846A patent/FR2043794A1/fr not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993006235A1 (en) * | 1991-09-20 | 1993-04-01 | Zeneca Limited | Process for the preparation of enantiomerically pure 4-hydroxytetrahydro-2-pyranone derivatives |
| US5443970A (en) * | 1991-09-20 | 1995-08-22 | Zeneca Limited | Pyranones |
| US6509299B2 (en) | 2001-06-08 | 2003-01-21 | Sumitomo Chemical Company, Limited | Pyrone compounds and there use |
| ES2200689A1 (es) * | 2001-06-08 | 2004-03-01 | Sumitomo Chemical Co | Compuestos de pirona y su uso. |
| ES2200689B1 (es) * | 2001-06-08 | 2005-05-01 | Sumitomo Chemical Company, Limited | Compuestos de pirona y su uso. |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2025572A1 (de) | 1970-12-03 |
| NL7007664A (enrdf_load_stackoverflow) | 1970-12-01 |
| CH514573A (de) | 1971-10-31 |
| FR2043794A1 (enrdf_load_stackoverflow) | 1971-02-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |