GB1411957A - Preparation of benzoselenazoles - Google Patents
Preparation of benzoselenazolesInfo
- Publication number
- GB1411957A GB1411957A GB5905572A GB5905572A GB1411957A GB 1411957 A GB1411957 A GB 1411957A GB 5905572 A GB5905572 A GB 5905572A GB 5905572 A GB5905572 A GB 5905572A GB 1411957 A GB1411957 A GB 1411957A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diselenide
- nitrophenyl
- alkyl
- bis
- heating
- 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
- AIGNCQCMONAWOL-UHFFFAOYSA-N 1,3-benzoselenazole Chemical class C1=CC=C2[se]C=NC2=C1 AIGNCQCMONAWOL-UHFFFAOYSA-N 0.000 title abstract 2
- -1 methylenedioxy group Chemical group 0.000 abstract 5
- 125000000217 alkyl group Chemical group 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- JSJQXIKNYJDACT-UHFFFAOYSA-N (potassiodiselanyl)potassium Chemical compound [Se-][Se-].[K+].[K+] JSJQXIKNYJDACT-UHFFFAOYSA-N 0.000 abstract 1
- WFDHPWTYKOAFBJ-UHFFFAOYSA-N 1,2-dimethoxy-4,5-dinitrobenzene Chemical compound COC1=CC([N+]([O-])=O)=C([N+]([O-])=O)C=C1OC WFDHPWTYKOAFBJ-UHFFFAOYSA-N 0.000 abstract 1
- UPQCOQQSUKPIKS-UHFFFAOYSA-N 1-[(4,5-dimethoxy-2-nitrophenyl)diselanyl]-4,5-dimethoxy-2-nitrobenzene Chemical compound C1=C(OC)C(OC)=CC([Se][Se]C=2C(=CC(OC)=C(OC)C=2)[N+]([O-])=O)=C1[N+]([O-])=O UPQCOQQSUKPIKS-UHFFFAOYSA-N 0.000 abstract 1
- 230000001476 alcoholic effect Effects 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 150000001244 carboxylic acid anhydrides Chemical class 0.000 abstract 1
- XIMIGUBYDJDCKI-UHFFFAOYSA-N diselenium Chemical compound [Se]=[Se] XIMIGUBYDJDCKI-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D517/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having selenium, tellurium, or halogen atoms as ring hetero atoms
- C07D517/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having selenium, tellurium, or halogen atoms as ring hetero atoms in which the condensed system contains two hetero rings
- C07D517/04—Ortho-condensed systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C391/00—Compounds containing selenium
- C07C391/02—Compounds containing selenium having selenium atoms bound to carbon atoms of six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D293/00—Heterocyclic compounds containing rings having nitrogen and selenium or nitrogen and tellurium, with or without oxygen or sulfur atoms, as the ring hetero atoms
- C07D293/10—Heterocyclic compounds containing rings having nitrogen and selenium or nitrogen and tellurium, with or without oxygen or sulfur atoms, as the ring hetero atoms condensed with carbocyclic rings or ring systems
- C07D293/12—Selenazoles; Hydrogenated selenazoles
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1411957 5,6-Dialkoxy-2-alkyl-benzo[b]selenazoles ILFORD Ltd 15 March 1974 [21 Dec 1972] 59055/72 Heading C2C A benzoselenazole (I), where R 1 and R 2 are C 1-4 alkyl or form a methylenedioxy group and R 3 is C 1-4 alkyl, is made by heating an alcoholic solution of a dinitro compound II with an aqueous alkali metal diselenide and cyclizing the resulting bis-(4,6-disubstituted-2-nitrophenyl) diselenide, by heating, under reducing conditions with a C 1-4 carboxylic acid anhydride. Bis - (4,5 - dimethoxy - 2 - nitrophenyl)- diselenide is made by reacting 4,5-dinitroveratrole with potassium diselenide. Bis.(4,5- methylenedioxy - 2 - nitrophenyl) diselenide is made in a similar manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5905572A GB1411957A (en) | 1972-12-21 | 1972-12-21 | Preparation of benzoselenazoles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5905572A GB1411957A (en) | 1972-12-21 | 1972-12-21 | Preparation of benzoselenazoles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1411957A true GB1411957A (en) | 1975-10-29 |
Family
ID=10482975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5905572A Expired GB1411957A (en) | 1972-12-21 | 1972-12-21 | Preparation of benzoselenazoles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1411957A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115677621A (en) * | 2022-10-24 | 2023-02-03 | 广州医科大学 | Synthesis method of benzothioselenazole-1-ketone compound and enantiomer thereof |
-
1972
- 1972-12-21 GB GB5905572A patent/GB1411957A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115677621A (en) * | 2022-10-24 | 2023-02-03 | 广州医科大学 | Synthesis method of benzothioselenazole-1-ketone compound and enantiomer thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |