GB1298620A - Substituted benzopyrans and process for the production thereof - Google Patents
Substituted benzopyrans and process for the production thereofInfo
- Publication number
- GB1298620A GB1298620A GB28148/72A GB2814872A GB1298620A GB 1298620 A GB1298620 A GB 1298620A GB 28148/72 A GB28148/72 A GB 28148/72A GB 2814872 A GB2814872 A GB 2814872A GB 1298620 A GB1298620 A GB 1298620A
- Authority
- GB
- United Kingdom
- Prior art keywords
- methyl
- tetrahydrothiophene
- cyclization
- carboxylate
- oxo
- 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
- C07D495/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms
- C07D495/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
- C07D495/04—Ortho-condensed systems
-
- 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
- C07D333/26—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 hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D333/38—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)
- 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 |
---|---|---|---|
US85292869A | 1969-08-25 | 1969-08-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1298620A true GB1298620A (en) | 1972-12-06 |
Family
ID=25314583
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB28148/72A Expired GB1298620A (en) | 1969-08-25 | 1970-07-13 | Substituted benzopyrans and process for the production thereof |
GB33970/70A Expired GB1298619A (en) | 1969-08-25 | 1970-07-13 | Thieno benzopyran and thiopyrano benzopyran derivatives and method of making the same |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB33970/70A Expired GB1298619A (en) | 1969-08-25 | 1970-07-13 | Thieno benzopyran and thiopyrano benzopyran derivatives and method of making the same |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS502520B1 (fr) |
BE (1) | BE755213A (fr) |
CA (1) | CA967969A (fr) |
CH (5) | CH558377A (fr) |
DE (1) | DE2041610A1 (fr) |
FR (1) | FR2068516B1 (fr) |
GB (2) | GB1298620A (fr) |
NL (1) | NL169317C (fr) |
SE (2) | SE380526B (fr) |
ZA (1) | ZA705834B (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3934024A (en) * | 1971-12-20 | 1976-01-20 | Sharps Associates | Method of producing analgesia and compositions useful therein |
CA994792A (en) * | 1971-12-27 | 1976-08-10 | Raj K. Razdan | Esters of thienobenzopyrans and thiopyranobenzopyrans |
FR2310128A2 (fr) * | 1975-05-06 | 1976-12-03 | Little Inc A | Nouveaux thiopyranobenzopyranes, produits intermediaires et procede pour leur obtention |
-
0
- BE BE755213D patent/BE755213A/fr unknown
-
1970
- 1970-06-05 CA CA084,843A patent/CA967969A/en not_active Expired
- 1970-07-13 GB GB28148/72A patent/GB1298620A/en not_active Expired
- 1970-07-13 GB GB33970/70A patent/GB1298619A/en not_active Expired
- 1970-07-15 JP JP45061460A patent/JPS502520B1/ja active Pending
- 1970-08-20 SE SE7011351A patent/SE380526B/xx unknown
- 1970-08-20 SE SE7307657A patent/SE396951B/xx unknown
- 1970-08-21 DE DE19702041610 patent/DE2041610A1/de active Pending
- 1970-08-25 ZA ZA705834A patent/ZA705834B/xx unknown
- 1970-08-25 CH CH1261572A patent/CH558377A/fr not_active IP Right Cessation
- 1970-08-25 CH CH1269370A patent/CH528534A/fr not_active IP Right Cessation
- 1970-08-25 CH CH1270272A patent/CH566343A5/xx not_active IP Right Cessation
- 1970-08-25 NL NLAANVRAGE7012587,A patent/NL169317C/xx not_active IP Right Cessation
- 1970-08-25 FR FR7030991A patent/FR2068516B1/fr not_active Expired
-
1975
- 1975-06-10 CH CH1269370A patent/CH567038A5/xx not_active IP Right Cessation
- 1975-06-10 CH CH1269370A patent/CH567039A5/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
BE755213A (fr) | 1971-02-01 |
NL169317C (nl) | 1982-07-01 |
CH567039A5 (fr) | 1975-09-30 |
FR2068516A1 (fr) | 1971-08-27 |
FR2068516B1 (fr) | 1974-08-23 |
NL7012587A (fr) | 1971-03-01 |
CH528534A (fr) | 1972-09-30 |
SE396951B (sv) | 1977-10-10 |
JPS502520B1 (fr) | 1975-01-27 |
CH566343A5 (fr) | 1975-09-15 |
DE2041610A1 (de) | 1971-03-25 |
CA967969A (en) | 1975-05-20 |
GB1298619A (en) | 1972-12-06 |
SE380526B (sv) | 1975-11-10 |
NL169317B (nl) | 1982-02-01 |
CH567038A5 (fr) | 1975-09-30 |
CH558377A (fr) | 1975-01-31 |
ZA705834B (en) | 1971-04-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |