SU264395A1 - - Google Patents
Info
- Publication number
- SU264395A1 SU264395A1 SU1335324A SU1335324A SU264395A1 SU 264395 A1 SU264395 A1 SU 264395A1 SU 1335324 A SU1335324 A SU 1335324A SU 1335324 A SU1335324 A SU 1335324A SU 264395 A1 SU264395 A1 SU 264395A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- calculated
- found
- formic
- water
- trifluoroacetic acid
- Prior art date
Links
- BDAGIHXWWSANSR-UHFFFAOYSA-N formic acid Chemical compound OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- DTQVDTLACAAQTR-UHFFFAOYSA-N trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N Imidazole Chemical compound C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing Effects 0.000 description 1
Description
Изобретение относитс К получению новой гетероциклической системы, включающей фентиазиновый и имидазольный циклы, котора может представл ть интерес в качестве исходного продукта дл синтеза новых биологически активных препаратов.The invention relates to the preparation of a new heterocyclic system, including the fenthiazine and imidazole cycles, which may be of interest as a starting material for the synthesis of new biologically active preparations.
Предлагаетс способ -получени производных имидазо 4,5,1 -п, т -фентиазина, заключающийс в том, что 1-аминофентиазин нагревают с муравьиной или трифторуксусной кислотой при 100-120°С с последующим выделением целевого продукта известными приемами.A method is proposed for the preparation of imidazo derivatives of 4,5,1 -n, t -phenthiazine, which consists in that 1-aminofenthiazine is heated with formic or trifluoroacetic acid at 100-120 ° C, followed by isolation of the target product by known techniques.
Пример 1. Имидазо 4,5,1-/г, т -фентиазин.Example 1. Imidazo 4,5,1- / g, t-fentiazine.
2,14 г (0,05 моль) ; 1-аминофентиазина смешивают с 5 мл 85%-ной муравьиной кислоты. СмесьКИПЯТЯТ 4 час. Затем реакционную массу выливают в воду и разбавленным раствором едкого натра подщелачивают до щелочной реакции . Выделивп1ийс осадок перекристаллизовывают из водного спирта. Получают 1,8 г (72%) вещества с т. -пл. 164-165 С.2.14 g (0.05 mol); 1-aminophenthiazine is mixed with 5 ml of 85% formic acid. MixtureKEEP 4 hours. Then the reaction mass is poured into water and the diluted caustic soda solution is alkalinized to an alkaline reaction. The precipitate is recrystallized from aqueous alcohol. Obtain 1.8 g (72%) of substance with m.-pl. 164-165 C.
Найдено, %: N 12,44, 12,67; S 14,21, 14,32.Found,%: N 12.44, 12.67; S 14.21, 14.32.
CisHsNsS.CisHsNsS.
Вычислено, %: N 12,49; S 14,30.Calculated,%: N 12.49; S 14.30.
Хлоргидрат, полученный растворением основани в сол ной кислоте, имеет т. пл. 248- 250С.The hydrochloride obtained by dissolving the base in hydrochloric acid has a melting point of 207 °. 248-250C.
Найдено, %: С1 13,57, 13,62; N 10,74, 10,85.Found,%: C1 13.57, 13.62; N 10.74, 10.85.
Вычислено, %: С1 13,60; N 10,75.Calculated,%: C1 13.60; N 10.75.
Пример 2. 1-Трифторметилимидазо 4,5,1п т -фентиазин .Example 2. 1-Trifluoromethylimidazo 4,5,1 p t -fentiazine.
1,07 г (0,005 моль) 1-аминофентиазина и 2,5 мл трифторуксусной кислоты кип т т с обратным холодильником 17 час. Реакционную массу выливают в воду и подщелачивают разбавленным раствором едкого натра до щелочной реакции. Выпавший осадок отфильтровывают , промывают водой. После перекристаллизации из водного спирта получают блест щие кристаллы с т. пл. 100-101°С.1.07 g (0.005 mol) of 1-aminophenthiazine and 2.5 ml of trifluoroacetic acid are refluxed for 17 hours. The reaction mass is poured into water and alkalinized with a dilute sodium hydroxide solution until alkaline. The precipitation is filtered off, washed with water. After recrystallization from aqueous alcohol, shiny crystals with a m.p. 100-101 ° C.
Найдено, %: N 9,64, 9,65; S 11,30, 11,25.Found,%: N 9.64, 9.65; S 11.30, 11.25.
СиНтЫзЗРз.Synthszr.
Вычислено, %: N 9,59; S 10,97.Calculated,%: N 9.59; S 10.97.
Предмет изобрете«и The subject invention and
Способ .получени производных имидазо 4 ,5,-п,т -фентиазина, отличающийс тем, что 1-аминофентиазин подвергают взаимодействию с муравьиной или трифторуксусной кислотой при 100-120 С с последующим выделением целев.ого продукта известными приемами.Method for preparing imidazo derivatives of 4, 5, -n, t -phenthiazine, characterized in that 1-aminofenthiazine is reacted with formic or trifluoroacetic acid at 100-120 ° C, followed by isolation of the desired product by known techniques.
Publications (1)
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