SU236475A1 - METHOD OF OBTAINING 6,7-DIHYDRO-5-ACETYL-TRIAZOLO- - Google Patents
METHOD OF OBTAINING 6,7-DIHYDRO-5-ACETYL-TRIAZOLO-Info
- Publication number
- SU236475A1 SU236475A1 SU1198685A SU1198685A SU236475A1 SU 236475 A1 SU236475 A1 SU 236475A1 SU 1198685 A SU1198685 A SU 1198685A SU 1198685 A SU1198685 A SU 1198685A SU 236475 A1 SU236475 A1 SU 236475A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- dihydro
- obtaining
- triazolo
- acetyl
- water
- Prior art date
Links
- LPXPTNMVRIOKMN-UHFFFAOYSA-M Sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- 235000010288 sodium nitrite Nutrition 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000015450 Tilia cordata Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing Effects 0.000 description 1
- 238000002211 ultraviolet spectrum Methods 0.000 description 1
Description
Изобретение касаетс способа получени 6,7-дигидро-5-ацетилтриазоло-(5,6-й)- индолов, которые могут представл ть интерес как промежуточные продукты в синтезе биологически активных соединений.The invention concerns a process for the preparation of 6,7-dihydro-5-acetyltriazolo (5,6-th) -indoles, which may be of interest as intermediates in the synthesis of biologically active compounds.
Предложенный способ получени этих соединений заключаетс .во взаимодействии 5,6диамйню-1-ацетилиндоли«а с нитритом натри в среде уксусиой кислоты при температуре с выделением целевого продукта известиым способом.The proposed method for the preparation of these compounds consists in the interaction of 5,6-diamine-1-acetylindole with sodium nitrite in acetic acid at a temperature with the release of the target product by the lime method.
Пример. К суспензии 3 г 5,6-диамино-1адетилиндолина в 6,5 мл 40%-ной уксусной кислоты, охлажденной до 5°С, по капл м приливают раствор из 1,18 г нитрита натри в 2 мл воды. При этом температура реакциоиной массы повышаетс до 75°С. После нагревани на вод ной бане при 80°С в течение 2 час смесь охлаждают и отфильтровывают светло-желтый кристаллический осадок.Example. A solution of 1.18 g of sodium nitrite in 2 ml of water is added dropwise to a suspension of 3 g of 5,6-diamino-1-de-tilindoline in 6.5 ml of 40% acetic acid, cooled to 5 ° C. At the same time, the temperature of the reaction mass rises to 75 ° C. After heating in a water bath at 80 ° C for 2 hours, the mixture is cooled and a light yellow crystalline precipitate is filtered off.
Получают 3 г (94,6%) 6,7-дигидро-5-ацетилтриазоло- (5,6-с()-индола с т. пл. 241-242,5°С (из воды, запа нный калилл р). Продукт не раствор етс в эфире, кии щем толуоле, при нагревании раствор етс в метаноле, но выпадает из раствора только при разбавлении водой.3 g (94.6%) of 6,7-dihydro-5-acetyltriazolo- (5,6-с () -indole) with a melting point of 241-242,5 ° С are obtained (from water, sealed with potassium chloride) The product does not dissolve in ether, cue toluene, dissolves in methanol when heated, but only drops out of solution when diluted with water.
Найдено, %: С 59,69, 59,54; Н 5,17, 5,20.Found,%: C 59.69, 59.54; H 5.17, 5.20.
CioHioN4O.CioHioN4O.
Вычислено, %: С 59,39; Н 4,98.Calculated,%: C 59.39; H 4.98.
УФ-спектр (в метаноле): Ямакс 303 ммк (Ige 4,04), 315 ммк (Ige 403).UV spectrum (in methanol): Yamax 303 mmk (Ige 4.04), 315 mmk (Ige 403).
Предмет изобретени Subject invention
Способ получени 6,7-дигидро-5-ацетилтриазоло- (5,6-(i)-индолов, отличающийс тем, что 5,6-диамиио-1-ацетилипдолин обрабатывают нитритом натри в среде уксуоюй кислоты при температуре с выделением целевого продукта известным способом.The method of obtaining 6,7-dihydro-5-acetyltriazolo- (5,6- (i) -indoles, characterized in that 5,6-diamio-1-acetylipdoline is treated with sodium nitrite in an acid urea medium at a temperature with isolation of the target product by known in a way.
Publications (1)
Publication Number | Publication Date |
---|---|
SU236475A1 true SU236475A1 (en) |
Family
ID=
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SU1184442A3 (en) | Method of producing derivatives of 5-substituted oxazolidine-2,4-dion or their pharmaceutically acceptable salts in form of racemate or optically active isomers | |
CN114805314B (en) | Synthesis method of Entecavir | |
SU236475A1 (en) | METHOD OF OBTAINING 6,7-DIHYDRO-5-ACETYL-TRIAZOLO- | |
KR960008664B1 (en) | Process for the preparation of 2,b-dichlorodiphenylamino acetic acid derivatives | |
RU2744834C2 (en) | Method for producing 4-alkoxy-3-hydroxypicolinic acids | |
SU638258A3 (en) | Method of obtaining derivatives of naphthyridine | |
FR2686876A1 (en) | PROCESS FOR THE PREPARATION OF ARYLACETIC ACIDS AND THEIR SALTS OF ALKALI METALS. | |
JP2552319B2 (en) | 3-amino-2,4,5-trifluorobenzoic acid | |
SU404238A1 (en) | METHOD OF OBTAINING FLAVON-7-OXYACETATE LOWER AL KIL | |
US4172208A (en) | 5-Bromo-5,5-dicarboxyethylvalaraldehyde diethyl acetal | |
KR810000802B1 (en) | Preparing process for 4-benzoyl pyrazol derivatives and its aluminum salts | |
RU2070193C1 (en) | Process for preparing 5-bromonicotinic acid | |
SU202152A1 (en) | METHOD OF OBTAINING 1-HEXILTEOBROMINE | |
SU237135A1 (en) | The method of producing derivatives of aryl | |
SU1384590A1 (en) | Method of producing indolyzine/2,3-b/quinoxaline-12-carbonitryl | |
JPH0322377B2 (en) | ||
KR800001550B1 (en) | Preparing process for 5-(4-hyroxy phenyl)hydantoins | |
SU346874A1 (en) | ||
SU160508A1 (en) | ||
US3155673A (en) | Process for preparing vitamin b | |
SU359821A1 (en) | ||
SU245123A1 (en) | METHOD OF OBTAINING 3,4-DICHLORANILIDES ~ a-y- ( | |
SU1761745A1 (en) | Method of 1,1,4,4-tetranitrobutane diol-2,3 synthesis | |
JPH04230344A (en) | 3-substituted 2,4,5-trifluorobenzoic acid and production thereof | |
SU311901A1 (en) | METHOD OF CLEANING 4,6-DINITROIZO ACID ACID |