SU697506A1 - Method of preparing 1-methyl-7-formylindole - Google Patents

Method of preparing 1-methyl-7-formylindole

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Publication number
SU697506A1
SU697506A1 SU782589162A SU2589162A SU697506A1 SU 697506 A1 SU697506 A1 SU 697506A1 SU 782589162 A SU782589162 A SU 782589162A SU 2589162 A SU2589162 A SU 2589162A SU 697506 A1 SU697506 A1 SU 697506A1
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SU
USSR - Soviet Union
Prior art keywords
methyl
formylindole
methylamine
preparing
aqueous solution
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Application number
SU782589162A
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Russian (ru)
Inventor
Алексей Николаевич Кост
Леонид Григорьевич Юдин
Рева Сафарович Сагитуллин
Адихамжон Муминов
Original Assignee
Московский Ордена Ленина И Ордена Трудового Красного Знамени Государственный Университет Им. М.В.Ломоносова
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Priority to SU782589162A priority Critical patent/SU697506A1/en
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Publication of SU697506A1 publication Critical patent/SU697506A1/en

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  • Plural Heterocyclic Compounds (AREA)

Description

(54) СПОСОБ ПОЛУЧЕНИЯ 1-МЕТИЛ-7-ФОРМИЛИНДОЛА(54) METHOD OF OBTAINING 1-METHYL-7-FORMILINDOL

Изобретение относитс  к новому способу получени  нового соединени  индольного р да, которое может быть использовано как полупродукт при синтезе лекарственных веществ и красителей , До насто щего времени получали ТОЛЬКО 7-формнлиндол, исход  из производных , индолов. Известен способ получени  7-форми линдола восстановлением 7-цианиндола водным раствором гипофосфата щелочного металла в среде уксусной кисло ты и пиридина в присутствии скелетно го никелевого катализатора 1, Однако известными способами не удавалось получить 1-метил-7-формилиндол , который может служить исходным веществом дл  синтеза аналогов известных регул торов центральной нервной системы типа 7-аминозтилиндо ла. Целью изобретени   вл етс  разработка нового способа получени  неописанного в литературе соединени . Поставленна  цель достигаетс  способом получени  1-метил-7-формил индола, заключающимс  в том, что йодметилат никотирина обрабатывают водным раствором метиламина и бисульфита метиламина при 150-200°С. Пример 1. 1-метил-7-ФО1МЛИЛиндол . Смесь 150 мг (0,5 ммоль) йодметилата никотирина, 3 мл бисульфита метиламина и 6 мл 30%-ного водного раствора метиламина нагревают в запа нной ампуле (в автоклаве) 70 час при 150 , Охлаждают реакционную смесь, три раза экстрагируют бензолом , бензольные выт жки сушат сульфатом магни , отгон ют растворитель и выдел ют целевое вещество хроматографированием на силикагеле (100/160) (система бензол-этилацетат - 10:4), Выдел ют 20 мг (25% от теоретического ) бесцветного кристаллического 1-метил-7-формилиндола , т. пл. 8284°С . Масс-спектр М 159. Врутто-формула HgON-ИК-спектр: 1690 см-- (карбонильна  группа). Спектр ПМР (в ССе4, внутренний стандарт ГМДС): 3,27 (С, 1-СНз), 5,65 (д, 3H,a,5t 4 Гц), 6,13 ( А, , ан, 325 4 Гц) , 6,32 (Т, 5Н,а5. 8 Гц, 8 Гц), 6,85 (К 4Н,а45--8 Гц, 346 2 Гц), 6,95 (к, 6Н,з 8 Гц, 2 Гц), 9,23 (С, ОНО) .The invention relates to a new method for producing a new compound of the indole series, which can be used as an intermediate in the synthesis of medicinal substances and dyes. Until now, ONLY 7-formalindole was obtained, starting from derivatives, indoles. The known method of producing 7-formylindol is by reducing 7-cyanindole with an aqueous solution of alkali metal hypophosphate in acetic acid and pyridine in the presence of nickel skeletal catalyst 1. However, it was not possible to obtain 1-methyl-7-formylindole by known methods, which can serve as the starting material for the synthesis of analogues of the known regulators of the central nervous system such as 7-aminostilindo. The aim of the invention is to develop a new method for producing a compound not described in the literature. This goal is achieved by the method of obtaining 1-methyl-7-formyl indole, which consists in that nicotine iodomethyl is treated with an aqueous solution of methylamine and methylamine bisulfite at 150-200 ° C. Example 1. 1-methyl-7-FO1 MLHINDOL. A mixture of 150 mg (0.5 mmol) of nicotyrin iodomethyl, 3 ml of methylamine bisulfite and 6 ml of a 30% aqueous solution of methylamine is heated in a sealed ampoule (autoclave) for 70 hours at 150. The reaction mixture is cooled, extracted three times with benzene, benzene. the extracts are dried with magnesium sulfate, the solvent is distilled off and the target substance is isolated by chromatography on silica gel (100/160) (benzene-ethyl acetate system 10: 4), 20 mg (25% of the theoretical) of colorless crystalline 1-methyl-7 is isolated -formylindole, so pl. 8284 ° C. Mass spectrum M 159. Volute formula HgON-IR spectrum: 1690 cm-- (carbonyl group). PMR spectrum (in CCe4, HMDS internal standard): 3.27 (C, 1-СНз), 5.65 (d, 3H, a, 5t 4 Hz), 6.13 (A,, an, 325 4 Hz) , 6.32 (T, 5H, a5. 8 Hz, 8 Hz), 6.85 (K 4H, a45--8 Hz, 346 2 Hz), 6.95 (k, 6H, h 8 Hz, 2 Hz ), 9.23 (C, IT).

Пример 2. Проведен аналогично опыт при .Example 2. Carried out similarly when experiment.

При этом было получено из 150 мг йо метилата никотирина 18 мг 1-метил-7-формилиндол С 23%-ным выходом.In this case, 18 mg of 1-methyl-7-formylindol was obtained from 150 mg of yyro methylate nicotine with 23% yield.

Таким образом, предлагаемый способ позвол ет в одну стадию из легкодоступного продукта получать новое исходное соединение - 1-метил-7-формилиндола , которое, может быть использовано в качестве полупродуктов дл  синтеза биологически активных веществ и красителей.Thus, the proposed method allows in one stage from a readily available product to obtain a new starting compound, 1-methyl-7-formylindole, which can be used as intermediates for the synthesis of biologically active substances and dyes.

Claims (1)

Формула изобретени Invention Formula Способ получени  1-метил-7-формилиндола , отличающийс  тем, что иодметилат никотирина обрабатывают водным раствором метиламина и бисульфита метиламина при температуре 150-200С.A method for producing 1-methyl-7-formylindole, characterized in that nicotine iodomethyl is treated with an aqueous solution of methylamine and methylamine bisulfite at a temperature of 150-200 ° C. Источники информации, прин тые во внимание при экспертизеSources of information taken into account in the examination i.-JfeEv- him. Acta, 51, № 7,1616, 1968.i.-JfeEv- him. Acta, 51, No. 7,1616, 1968.
SU782589162A 1978-03-10 1978-03-10 Method of preparing 1-methyl-7-formylindole SU697506A1 (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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