RO81604B1 - Procedeu pentru obtinerea 2-metil-5-mercapto-1, 3, 4-tiadiazolului - Google Patents
Procedeu pentru obtinerea 2-metil-5-mercapto-1, 3, 4-tiadiazoluluiInfo
- Publication number
- RO81604B1 RO81604B1 RO104010A RO10401081A RO81604B1 RO 81604 B1 RO81604 B1 RO 81604B1 RO 104010 A RO104010 A RO 104010A RO 10401081 A RO10401081 A RO 10401081A RO 81604 B1 RO81604 B1 RO 81604B1
- Authority
- RO
- Romania
- Prior art keywords
- thiadiazole
- mercapto
- methyl
- preparing
- potassium
- Prior art date
Links
- FPVUWZFFEGYCGB-UHFFFAOYSA-N 5-methyl-3h-1,3,4-thiadiazole-2-thione Chemical compound CC1=NN=C(S)S1 FPVUWZFFEGYCGB-UHFFFAOYSA-N 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 abstract 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 abstract 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical group CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 abstract 1
- -1 aliphatic alcohols Chemical class 0.000 abstract 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- ODMABOBKUUZKJB-UHFFFAOYSA-M potassium;n-aminocarbamodithioate Chemical compound [K+].NNC([S-])=S ODMABOBKUUZKJB-UHFFFAOYSA-M 0.000 abstract 1
- 238000007363 ring formation reaction Methods 0.000 abstract 1
Landscapes
- Nitrogen- Or Sulfur-Containing Heterocyclic Ring Compounds With Rings Of Six Or More Members (AREA)
Abstract
Inventia se refera la un procedeu de obtinere a 2-metil-5-mercapto-1,3,4-tiadiazolului, si consta în aceea ca, acethidrazida obtinuta, prin reactia dintre esterii etilic sau butilic ai acidului acetic si hidratul de hidrazida concentratii 30...40% la temperatura de 70...90 degree C, timp de 5....8h, se trateaza cu sulfura de carbon si hidroxid de potasiu în mediu de alcooli alifatici inferiori la temperatura de 5...45 degree C, urmatade ciclizarea ditiocarbazinatului de potasiu obtinut în prezenta acidului sulfuric 97....99% la temperatura de +10....+2 degree C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO104010A RO81604B1 (ro) | 1981-04-14 | 1981-04-14 | Procedeu pentru obtinerea 2-metil-5-mercapto-1, 3, 4-tiadiazolului |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO104010A RO81604B1 (ro) | 1981-04-14 | 1981-04-14 | Procedeu pentru obtinerea 2-metil-5-mercapto-1, 3, 4-tiadiazolului |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO81604A2 RO81604A2 (ro) | 1983-04-29 |
| RO81604B1 true RO81604B1 (ro) | 1983-04-30 |
Family
ID=20109829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO104010A RO81604B1 (ro) | 1981-04-14 | 1981-04-14 | Procedeu pentru obtinerea 2-metil-5-mercapto-1, 3, 4-tiadiazolului |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO81604B1 (ro) |
-
1981
- 1981-04-14 RO RO104010A patent/RO81604B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO81604A2 (ro) | 1983-04-29 |
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