SU84980A1 - The method of obtaining 2-alkylbenzthiazoles by the action of fatty acid anhydrides on orthoamino-thiophenol - Google Patents
The method of obtaining 2-alkylbenzthiazoles by the action of fatty acid anhydrides on orthoamino-thiophenolInfo
- Publication number
- SU84980A1 SU84980A1 SU400431A SU400431A SU84980A1 SU 84980 A1 SU84980 A1 SU 84980A1 SU 400431 A SU400431 A SU 400431A SU 400431 A SU400431 A SU 400431A SU 84980 A1 SU84980 A1 SU 84980A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- alkylbenzthiazoles
- orthoamino
- thiophenol
- obtaining
- action
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
1И.НЛ1 нагреванием оо 5а;г -101цсгос 1I.NL1 by heating oo 5a; g -101tsgos
сутствии серпо сол ной кислоты.in the presence of hydrochloric acid.
П р :; м е р. Воднвп HuvioMHcii растворEtc :; m e r. Vodnp HuvioMHcii solution
ченный сплавлением оОг 2-:.леркаптобепзтназола с 150 г едкого кали н 25 мл воды прн 200-2 0 и растворси1 ем плава в 175 воды, фплыруетс от И1лама, н к фильтрату ири охлаждении доба;-,лг,етс 175. концентрнросанной сол ной кнслоты. В раствор при (ажд.ении холодной БОДОН н )емсп1нван1И{ порци ми вноситс 65.и.г уксусного ангидрида. К KOIUI, выпадает об 1лы1ыГ| осадок К-ацет1 л-о-аминотнофенола. К массе приливаетс 75 мл коннентрированио сол ной кислоты и смесь нагреваетс на к1;н 1цеГ| вод ной бане до полного растворени Mac.ia, выдсл юидегос в начале нагревани . Pis полученного прозрачного раствора после его охлажденп основание выдел етс прибавлением коицептр рованного раствора н.1елочи ,; иоследуюн1ей neperoHKoii с вод ным паром. Дистилл т обрабатываетс эфиром. После осушкгг эфирной выт жки поташом и отгонки эфира при последуюпдей перегонке в вакууме получают 89,4-91,7% от теоретического 2-метилбензтиазола (т. кип. 106-107 при 12льи).by fusing oOg 2 -: lerkaptobezdnazola with 150 g of potassium hydroxide with 25 ml of water pp 200-2 0 and dissolving a water in 175 water, fed from Illama, n to the filtrate and cooling by addition; Noahslots. In the solution, with (cold cold BODON n) emsp1nvan1I {65.i.g of acetic anhydride is added in portions. K KOIUI, falls about 1LiG | K-ace1 L-o-aminothenol precipitate. 75 ml of hydrochloric acid is added to the mass and the mixture is heated by k1; n 1CG | water bath until complete dissolution of Mac.ia, expressed at the beginning of the heating. The Pis of the resulting clear solution after it is cooled, the base is released by the addition of a co-acceptor solution of n. 1 bile,; and subsequent water vapor neperoHKoii. The distillate is treated with ether. After drying the ether extract with potash and distilling the ether during the subsequent distillation in vacuum, 89.4-91.7% of the theoretical 2-methylbenzthiazole (m.p. 106-107 at 12lya) is obtained.
-ацнлчз-ампнотиосрспола в прио-амииот;10 (1;сно,. полу:N ; 84980-- 2 -- - .-account-ampnotierspol in prio-amyiot; 10 (1; clear; semi: N; 84980-- 2 - -.
Про л м е т и 3 о б р и и About the metal and 3 about br and and
Спо.соб , получени 2-алхнлбе113тиазолов действием anri-apif.iOB жирных .кислот иа ортоамииотиофенол, отличающийс тем, что ациЛировамию иодвергают гюдиые ьцелочные растворы ортоамииотиофеиола , иеиосредственно получеиные при рас1леилеиии 2-меркаптобепзтиазола едкими И1,елочал1 1, и образующиес при этом Х-ацил-оамииотиофено ,лы иагревают затем в мииеральпокислой среде. Spontaneously, get 2-alkhnbe acyl-oamiothiopheno, ly and then heat in microelectronic medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU400431A SU84980A1 (en) | 1949-07-09 | 1949-07-09 | The method of obtaining 2-alkylbenzthiazoles by the action of fatty acid anhydrides on orthoamino-thiophenol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU400431A SU84980A1 (en) | 1949-07-09 | 1949-07-09 | The method of obtaining 2-alkylbenzthiazoles by the action of fatty acid anhydrides on orthoamino-thiophenol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU84980A1 true SU84980A1 (en) | 1949-11-30 |
Family
ID=48257497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU400431A SU84980A1 (en) | 1949-07-09 | 1949-07-09 | The method of obtaining 2-alkylbenzthiazoles by the action of fatty acid anhydrides on orthoamino-thiophenol |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU84980A1 (en) |
-
1949
- 1949-07-09 SU SU400431A patent/SU84980A1/en active
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