ES430457A1 - Preparation of 2-alkoxy-5-sulphamoylbenzoic acids - Google Patents
Preparation of 2-alkoxy-5-sulphamoylbenzoic acidsInfo
- Publication number
- ES430457A1 ES430457A1 ES430457A ES430457A ES430457A1 ES 430457 A1 ES430457 A1 ES 430457A1 ES 430457 A ES430457 A ES 430457A ES 430457 A ES430457 A ES 430457A ES 430457 A1 ES430457 A1 ES 430457A1
- Authority
- ES
- Spain
- Prior art keywords
- alkoxybenzaldehyde
- sulfamoyl
- substituted
- molecular weight
- alkoxy
- 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
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C311/00—Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
- C07C311/22—Sulfonamides, the carbon skeleton of the acid part being further substituted by singly-bound oxygen atoms
- C07C311/29—Sulfonamides, the carbon skeleton of the acid part being further substituted by singly-bound oxygen atoms having the sulfur atom of at least one of the sulfonamide groups bound to a carbon atom of a six-membered aromatic ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
- C07C45/68—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
- C07C45/70—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction with functional groups containing oxygen only in singly bound form
- C07C45/71—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction with functional groups containing oxygen only in singly bound form being hydroxy groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
A process for the preparation of sulfamoyl-substituted 2-alkoxybenzoic acids in the 5-position, corresponding to the following general formula: **(See formula)** in which: A is a low molecular weight (1 to 5 carbon atoms) alcohol or alkenyl radical; B is a low molecular weight amino, monoalkoxylamino or dialcoylamino radical in which the alcohol groups can be linked together to form a ring with or without nitrogen, oxygen or sulfur; when the ring contains a nitrogen atom, said nitrogen atom can be attached to a low molecular weight alcohol group, an example of the resulting rings being: pyrrolidinyl, piperidinyl, imidazolidinyl, piperazine, morpholino or diazolidinyl, characterized in that said process comprises Starting from the salicylic aldehyde, treat it with an alcoholizing agent to produce a 2-alkoxybenzaldehyde on which ethyl orthoformate is reacted, so that the 2-alkoxybenzaldehyde diethylacetal is produced; this acetal, when treated with chlorosulfonic acid gives the corresponding 2-alkoxy-5-chlorosulfonylbenzaldehyde, which by treatment with ammonia or an amine gives the sulfamoyl-substituted 2-alkoxybenzaldehyde in the desired 5-position, which is oxidized then by an oxidizing agent to give the sulfamoyl-substituted 2-alkoxy-benzoic acid in the corresponding 5-position. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7335277A FR2245630B1 (en) | 1973-10-02 | 1973-10-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES430457A1 true ES430457A1 (en) | 1976-10-16 |
Family
ID=9125844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES430457A Expired ES430457A1 (en) | 1973-10-02 | 1974-09-27 | Preparation of 2-alkoxy-5-sulphamoylbenzoic acids |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS5850985B2 (en) |
AR (1) | AR202319A1 (en) |
CA (1) | CA1032552A (en) |
DE (1) | DE2444720A1 (en) |
ES (1) | ES430457A1 (en) |
FI (1) | FI60556C (en) |
FR (1) | FR2245630B1 (en) |
GB (2) | GB1474039A (en) |
IE (1) | IE39922B1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2933979A1 (en) * | 1979-08-22 | 1981-03-12 | Bayer Ag, 5090 Leverkusen | NEW 4-FLUOR-3-PHENOXY-BENZALDEHYDACETALS AND METHOD FOR THEIR PRODUCTION AND NEW INTERMEDIATE PRODUCTS FOR THIS AND METHOD FOR THEIR PRODUCTION. |
US4453004A (en) * | 1982-04-01 | 1984-06-05 | International Telephone And Telegraph Corporation | Process for the alkylation of phenolic compounds |
US6730786B2 (en) | 2000-06-22 | 2004-05-04 | Pfizer Inc | Process for the preparation of pyrazolopyrimidinones |
-
1973
- 1973-10-02 FR FR7335277A patent/FR2245630B1/fr not_active Expired
-
1974
- 1974-09-19 DE DE19742444720 patent/DE2444720A1/en not_active Withdrawn
- 1974-09-26 GB GB4193374A patent/GB1474039A/en not_active Expired
- 1974-09-26 FI FI280974A patent/FI60556C/en active
- 1974-09-26 CA CA210,187A patent/CA1032552A/en not_active Expired
- 1974-09-26 GB GB5282575A patent/GB1474040A/en not_active Expired
- 1974-09-27 JP JP11133374A patent/JPS5850985B2/en not_active Expired
- 1974-09-27 AR AR25581174A patent/AR202319A1/en active
- 1974-09-27 ES ES430457A patent/ES430457A1/en not_active Expired
- 1974-09-30 IE IE202274A patent/IE39922B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
IE39922L (en) | 1975-04-02 |
FR2245630A1 (en) | 1975-04-25 |
JPS5850985B2 (en) | 1983-11-14 |
IE39922B1 (en) | 1979-01-31 |
JPS5062948A (en) | 1975-05-29 |
DE2444720A1 (en) | 1975-04-10 |
FI60556B (en) | 1981-10-30 |
FI280974A (en) | 1975-04-03 |
FI60556C (en) | 1982-02-10 |
GB1474039A (en) | 1977-05-18 |
FR2245630B1 (en) | 1977-03-11 |
GB1474040A (en) | 1977-05-18 |
AR202319A1 (en) | 1975-05-30 |
CA1032552A (en) | 1978-06-06 |
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