GB1083127A - Improvements in or relating to thieno-benzothiapyran derivatives - Google Patents
Improvements in or relating to thieno-benzothiapyran derivativesInfo
- Publication number
- GB1083127A GB1083127A GB16324/67A GB1632467A GB1083127A GB 1083127 A GB1083127 A GB 1083127A GB 16324/67 A GB16324/67 A GB 16324/67A GB 1632467 A GB1632467 A GB 1632467A GB 1083127 A GB1083127 A GB 1083127A
- Authority
- GB
- United Kingdom
- Prior art keywords
- thieno
- benzothiapyran
- bromo
- reacting
- prepared
- 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
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C323/00—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
-
- 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
- C07D333/30—Hetero atoms other than halogen
- C07D333/34—Sulfur atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Abstract
Novel thieno-benzothiapyran derivatives of the formula <FORM:1083127/C2/1> in which R1 signifies a halogen atom, an alkoxy or alkylmercapto radical, each of from 1 to 4 carbon atoms, and R2 signifies an alkyl radical of from 1 to 4 carbon atoms, are prepared by reacting the appropriate 4-oxo-thieno-benzo-thiapyrans with organic magnesium halides of 1-C1-4 alkyl-4-halogeno-piperidines. The 4-oxo-thieno-benzothiapyran may be prepared by reacting an alkali-metal salt of a 2-bromobenzoic acid with an alkali-metal salt of 2-mercapto-thiophene, acidifying, and subjecting the resulting S-(2-thienyl)-thiosalicylic acid to an intramolecular ring closure. 2 - Bromo - 4 - methylmercapto - benzoic acid used as a starting material is prepared by reacting the diazo compound of 2-bromo-4-amino-benzoic acid with potassium ethyl xanthogenate, hydrolysing the product and methylating the 2-bromo-4-mercapto-benzoic acid produced with dimethyl sulphate.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1233563A CH433386A (en) | 1963-10-08 | 1963-10-08 | Process for the preparation of new heterocyclic compounds |
CH988764 | 1964-07-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1083127A true GB1083127A (en) | 1967-09-13 |
Family
ID=25705467
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB16324/67A Expired GB1083127A (en) | 1963-10-08 | 1964-10-05 | Improvements in or relating to thieno-benzothiapyran derivatives |
GB40477/64A Expired GB1083126A (en) | 1963-10-08 | 1964-10-05 | Improvements in or relating to thieno-benzothiapyran derivatives |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB40477/64A Expired GB1083126A (en) | 1963-10-08 | 1964-10-05 | Improvements in or relating to thieno-benzothiapyran derivatives |
Country Status (6)
Country | Link |
---|---|
AT (2) | AT244340B (en) |
BE (1) | BE654101A (en) |
ES (2) | ES304702A1 (en) |
GB (2) | GB1083127A (en) |
NL (2) | NL6411477A (en) |
OA (1) | OA01256A (en) |
-
0
- BE BE654101D patent/BE654101A/xx unknown
-
1964
- 1964-10-02 NL NL6411477A patent/NL6411477A/xx unknown
- 1964-10-02 NL NL6411476A patent/NL6411476A/xx unknown
- 1964-10-05 GB GB16324/67A patent/GB1083127A/en not_active Expired
- 1964-10-05 GB GB40477/64A patent/GB1083126A/en not_active Expired
- 1964-10-06 ES ES0304702A patent/ES304702A1/en not_active Expired
- 1964-10-06 AT AT849264A patent/AT244340B/en active
- 1964-10-06 AT AT849164A patent/AT247322B/en active
- 1964-10-06 ES ES0304703A patent/ES304703A1/en not_active Expired
- 1964-12-31 OA OA51503A patent/OA01256A/en unknown
Also Published As
Publication number | Publication date |
---|---|
GB1083126A (en) | 1967-09-13 |
ES304702A1 (en) | 1965-04-01 |
NL6411476A (en) | 1965-04-09 |
ES304703A1 (en) | 1965-04-01 |
AT244340B (en) | 1965-12-27 |
AT247322B (en) | 1966-06-10 |
NL6411477A (en) | 1965-04-09 |
OA01256A (en) | 1969-01-25 |
BE654101A (en) |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1083127A (en) | Improvements in or relating to thieno-benzothiapyran derivatives | |
ES332657A1 (en) | Method to prepare tiadiazoles. (Machine-translation by Google Translate, not legally binding) | |
ES442837A2 (en) | 3-alkyl-7-oxoalkyl-xanthine derivatives | |
ES296634A1 (en) | Procedure for the production of new heterocyclic compounds (Machine-translation by Google Translate, not legally binding) | |
GB1121140A (en) | Process for preparing 3-aminoisoxazole derivatives | |
GB1094982A (en) | 1,4-benzodioxanes | |
ES385774A1 (en) | Procedure for the preparation of new 2- (5-nitro-2- furil) -the (3,2-d) pyrimidines. (Machine-translation by Google Translate, not legally binding) | |
GB918169A (en) | New 6-amino-penicillanic acid derivatives | |
ES274329A1 (en) | Procedure for the preparation of new compounds of 1,5-benzodioxepano (Machine-translation by Google Translate, not legally binding) | |
GB1084447A (en) | Improvements in or relating to 4h-benzo [4,5] cyclohepta-[1,2-b] thiophene derivatives | |
ES321807A1 (en) | Procedure for the synthesis of new derivatives of 1,2,3,6-tetrahidropiridina. (Machine-translation by Google Translate, not legally binding) | |
ES277057A1 (en) | Procedure for the production of new derivatives of tiaxanthene (Machine-translation by Google Translate, not legally binding) | |
GB1044778A (en) | Colour photography | |
GB1114018A (en) | Process for producing 4-hydroxycyclohexanecarboxylic acid and derivatives thereof | |
GB1049769A (en) | Organic compounds containing an isocyclic and a heterocyclic non-aromatic ring and aprocess for the production of these compounds | |
GB1085771A (en) | Improvements in the preparation of 1,3,4-oxadiazol-2-one derivatives | |
GB937378A (en) | Production of phenylethylbenzoic acid compounds | |
GB1117807A (en) | Tetrahydropyridine derivatives | |
GB963625A (en) | Thiol-type thiamine derivatives and process for preparing them | |
GB1055060A (en) | Process for producing alpha hydroxy-glutaronitrile and its alkyl-substitute derivatives | |
ES316075A1 (en) | Procedure for the production of tropan derivatives. (Machine-translation by Google Translate, not legally binding) | |
GB693249A (en) | Manufacture of derivatives of 1-phenyl-2:3-dimethyl-4-amino-pyrazolone-(5) | |
GB1408851A (en) | Process for preparing allylidene phosphoranes | |
GB1064524A (en) | Process for preparing new isophthalic acid derivatives | |
GB1085075A (en) | 8-aza-steroid derivatives |