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RU2572081C1 - Method of obtaining 5-(arylmethylene)hexahydropyrimidine-2,4,6-triones - Google Patents

Method of obtaining 5-(arylmethylene)hexahydropyrimidine-2,4,6-triones Download PDF

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RU2572081C1
RU2572081C1 RU2014136619/04A RU2014136619A RU2572081C1 RU 2572081 C1 RU2572081 C1 RU 2572081C1 RU 2014136619/04 A RU2014136619/04 A RU 2014136619/04A RU 2014136619 A RU2014136619 A RU 2014136619A RU 2572081 C1 RU2572081 C1 RU 2572081C1
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pyrimidinethrione
arylmethylene
hexahydropyrimidine
compound
triones
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Алексей Георгиевич Тырков
Екатерина Алексеевна Юртаева
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Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Астраханский государственный университет"
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Abstract

FIELD: chemistry.
SUBSTANCE: invention relates to improved method of obtaining 5-(arylmethylene)hexahydropyrimidine-2,4,6-triones of general formula III. Compounds can be applied as potential antispasmodic and soporific means. Compounds of formula III a-f
Figure 00000009
where IIIa R = H; b R = 4-CH3O; c R = 4-Me2N; d R = 4-Cl; e R = 3-NO2; f R = 2-OH, are obtained by reaction of condensation at heating of 2,4,6-pyrimidinetrione I for 45 minutes with 1,1-fold excess of aromatic aldehydes II a-f in ethanol. Method is realised by the following scheme:
Figure 00000010
Method makes it possible to obtain products with stable high output 82-92%.
EFFECT: changing parameters of method conditions leads to reduction in output of target products.
1 tbl, 10 ex

Description

Изобретение относится к области органической химии, а именно способу получения серии 5-(арилметилен)гексагидропиримидин-2,4,6-трионов общей формулы III, которые могут быть использованы в качестве потенциальных противосудорожных [В.Г. Граник. Основы медицинской химии. - М.: Вузовская книга. 2001. С. 158] и снотворных средств [М.Д. Машковский. Лекарственные средства. - М.: Новая волна. 2006. С. 32].The invention relates to the field of organic chemistry, namely to a method for producing a series of 5- (arylmethylene) hexahydropyrimidine-2,4,6-triones of the general formula III, which can be used as potential anticonvulsants [V.G. Granik. Fundamentals of medical chemistry. - M.: University book. 2001. S. 158] and sleeping pills [M.D. Mashkovsky. Medicines - M .: New wave. 2006. S. 32].

Figure 00000001
Figure 00000001

Известен способ получения соединения близкого типа, который основан на процессе нитрования 2,4,6-пиримидинтриона нитрующей смесью, завершающийся получением 5,5-динитро-2,4,6-пиримидинтриона [A. Langlet, N.V. Latypov, U. Wellmar, P. Goede, J. Bergman. Tetrahedron Letters. 2000. Vol. 41, P. 2011-2013].A known method for producing compounds of a similar type, which is based on the nitration process of 2,4,6-pyrimidinethrione with a nitrating mixture, culminating in the production of 5,5-dinitro-2,4,6-pyrimidinethrione [A. Langlet, N.V. Latypov, U. Wellmar, P. Goede, J. Bergman. Tetrahedron Letters. 2000. Vol. 41, P. 2011-2013].

Известен способ получения соединений близкого типа, основанный на взаимодействии 2,4,6-пиримидинтриона со вторичными алкиламинами, который приводит к соответствующим 5-диалкиламино-2,4,6-пиримидинтрионам [патент RU №2177475].A known method for producing compounds of a similar type, based on the interaction of 2,4,6-pyrimidinethrione with secondary alkylamines, which leads to the corresponding 5-dialkylamino-2,4,6-pyrimidinone [patent RU No. 2177475].

Техническим результатом является синтез 5-арилметиленпроизводных гексагидропиримидин-2,4,6-трионов с высоким выходом 82-92%, основанный на реакции конденсации 2,4,6-пиримидинтриона ароматическими альдегидами, позволяющий расширить базу веществ, которые могут быть использованы в качестве потенциальных противосудорожных и снотворных средств.The technical result is the synthesis of 5-arylmethylene derivatives of hexahydropyrimidine-2,4,6-triones with a high yield of 82-92%, based on the condensation reaction of 2,4,6-pyrimidinodione with aromatic aldehydes, which allows expanding the base of substances that can be used as potential anticonvulsants and sleeping pills.

Для достижения технического результата в способе получения 5-(арилметилен)гексагидропиримидин-2,4,6-трионов общей формулы IIITo achieve a technical result in a method for producing 5- (arylmethylene) hexahydropyrimidine-2,4,6-triones of the general formula III

Figure 00000002
Figure 00000002

Проводят реакцию конденсации при нагревании 2,4,6-пиримидинтриона I в течение 45 минут с 1,1-кратном избытком ароматических альдегидов IIa-e в этаноле.Conduct a condensation reaction by heating 2,4,6-pyrimidinethrione I for 45 minutes with a 1.1-fold excess of aromatic aldehydes IIa-e in ethanol.

Figure 00000003
Figure 00000003

Иное соотношение исходных реагентов (примеры 2 и 3) или изменение времени проведения реакции (примеры 4 и 5) не позволяют достигнуть лучшего результата.A different ratio of the starting reagents (examples 2 and 3) or a change in the reaction time (examples 4 and 5) do not allow to achieve a better result.

Полученный технический результат позволяет получать с высоким выходом 82-92% 5-(арилметилен)гексагидропиримидин-2,4,6-трионы, расширять их ряд, а тем самым и спектр потенциально биологически активных веществ.The obtained technical result allows to obtain 5- (arylmethylene) hexahydropyrimidine-2,4,6-trions with a high yield of 82-92%, to expand their range, and thereby the spectrum of potentially biologically active substances.

Таким образом, совокупность существенных признаков, изложенных в формуле изобретения, позволяет достичь желаемого результата.Thus, the set of essential features set forth in the claims, allows to achieve the desired result.

Примеры осуществления заявляемого способа получения 5-(арилметилен)гексагидропиримидин-2,4,6-трионов IIIa-e, выходы, физические константы, данные элементного анализа и спектральные характеристики приведены в таблице 1.Examples of the proposed method for producing 5- (arylmethylene) hexahydropyrimidine-2,4,6-triones IIIa-e, yields, physical constants, elemental analysis data and spectral characteristics are shown in table 1.

Figure 00000004
Figure 00000004

Figure 00000005
Figure 00000005

Пример 1.Example 1

5-(Фенилметилен)-2,4,6-пиримидинтрион (соединение IIIа). К 1.28 г (0.01 моль) 2,4,6-пиримидинтриона I в 25 мл этанола добавляют 1.166 г (0.011 моль) бензальдегида IIа. Реакционную смесь кипятят 45 минут и охлаждают до комнатной температуры, осадок отфильтровывают, промывают 2 раза по 15 мл охлажденным этанолом и сушат на воздухе. Выход соединения IIIа составляет 85%.5- (Phenylmethylene) -2,4,6-pyrimidinethrione (compound IIIa). 1.18 g (0.011 mol) of benzaldehyde IIa are added to 1.28 g (0.01 mol) of 2,4,6-pyrimidine trion I in 25 ml of ethanol. The reaction mixture is boiled for 45 minutes and cooled to room temperature, the precipitate is filtered off, washed 2 times with 15 ml of chilled ethanol and dried in air. The yield of compound IIIa is 85%.

Пример 2.Example 2

5-(Фенилметилен)-2,4,6-пиримидинтрион (соединение IIIа). Получают аналогично примеру 1, только берут 1.06 г (0.01 моль) бензальдегида IIа. Выход соединения IIIа составляет 75%.5- (Phenylmethylene) -2,4,6-pyrimidinethrione (compound IIIa). Get analogously to example 1, only take 1.06 g (0.01 mol) of benzaldehyde IIa. The yield of compound IIIa is 75%.

Пример 3.Example 3

5-(Фенилметилен)-2,4,6-пиримидинтрион (соединение IIIа). Получают аналогично примеру 1, только берут 1.59 г (0.015 моль) бензальдегида IIа. Выход соединения IIIа составляет 70%.5- (Phenylmethylene) -2,4,6-pyrimidinethrione (compound IIIa). Get analogously to example 1, only take 1.59 g (0.015 mol) of benzaldehyde IIa. The yield of compound IIIa is 70%.

Пример 4.Example 4

5-(Фенилметилен)-2,4,6-пиримидинтрион (соединение IIIа). Получают аналогично примеру 1, только реакционную смесь кипятят 30 минут. Выход соединения IIIа составляет 70%.5- (Phenylmethylene) -2,4,6-pyrimidinethrione (compound IIIa). Get analogously to example 1, only the reaction mixture is boiled for 30 minutes. The yield of compound IIIa is 70%.

Пример 5.Example 5

5-(Фенилметилен)-2,4,6-пиримидинтрион (соединение IIIа). Получают аналогично примеру 1, только реакционную смесь кипятят 60 минут. Выход соединения IIIа составляет 75%.5- (Phenylmethylene) -2,4,6-pyrimidinethrione (compound IIIa). Get analogously to example 1, only the reaction mixture is boiled for 60 minutes. The yield of compound IIIa is 75%.

Пример 6.Example 6

5-[(4-Метоксифенил)метилен]-2,4,6-пиримидинтрион (соединение IIIб). Получают аналогично соединению IIIа из 1.28 г (0.01 моль) 2,4,6-пиримидинтриона I и 1.496 г (0.011 моль) 4-метоксибензальдегида IIб. Выход соединения IIIб составляет 87%.5 - [(4-Methoxyphenyl) methylene] -2,4,6-pyrimidine trion (compound IIIb). Obtained analogously to compound IIIa from 1.28 g (0.01 mol) of 2,4,6-pyrimidinethrione I and 1.496 g (0.011 mol) of 4-methoxybenzaldehyde IIb. The yield of compound IIIb is 87%.

Пример 7.Example 7

5-[(4-Диметиламинофенил)метилен]-2,4,6-пиримидинтрион (соединение IIIв). Получают аналогично соединению IIIа из 1.28 г (0.01 моль) 2,4,6-пиримидинтриона I и 1.485 г (0.011 моль) 4-диметиламинобензальдегида IIв. Выход соединения IIIв составляет 92%.5 - [(4-Dimethylaminophenyl) methylene] -2,4,6-pyrimidinethrione (compound IIIc). Obtained analogously to compound IIIa from 1.28 g (0.01 mol) of 2,4,6-pyrimidinethrione I and 1.485 g (0.011 mol) of 4-dimethylaminobenzaldehyde IIb. The yield of compound IIIc is 92%.

Пример 8.Example 8

5-[(4-Хлорфенил)метилен]-2,4,6-пиримидинтрион (соединение IIIг). Получают аналогично соединению IIIа из 1.28 г (0.01 моль) 2,4,6-пиримидинтриона I и 1.545 г (0.011 моль) 4-хлорбензальдегида IIг. Выход соединения IIIг составляет 90%.5 - [(4-Chlorophenyl) methylene] -2,4,6-pyrimidinethrione (compound IIIg). Prepare analogously to compound IIIa from 1.28 g (0.01 mol) of 2,4,6-pyrimidinethrione I and 1.545 g (0.011 mol) of 4-chlorobenzaldehyde IIg. The yield of compound IIIg is 90%.

Пример 9.Example 9

5-[(3-Нитрофенил)метилен]-2,4,6-пиримидинтрион (соединение IIIд). Получают аналогично соединению IIIа из 1.28 г (0.01 моль) 2,4,6-пиримидинтриона I и 1.661 г (0.011 моль) 3-нитробензальдегида IIд. Выход соединения IIIд составляет 82%.5 - [(3-Nitrophenyl) methylene] -2,4,6-pyrimidinethrione (compound IIIe). Prepared analogously to compound IIIa from 1.28 g (0.01 mol) of 2,4,6-pyrimidinethrione I and 1.661 g (0.011 mol) of 3-nitrobenzaldehyde IIe. The yield of compound IIIe is 82%.

Пример 10.Example 10

5-[(2-Гидроксифенил)метилен]-2,4,6-пиримидинтрион (соединение IIIе). Получают аналогично соединению IIIа из 1.28 г (0.01 моль) 2,4,6-пиримидинтриона I и 1.342 г (0.011 моль) 2-гидроксибензальдегида IIе. Выход соединения IIIе составляет 85%.5 - [(2-Hydroxyphenyl) methylene] -2,4,6-pyrimidinethrione (compound IIIe). Obtained analogously to compound IIIa from 1.28 g (0.01 mol) of 2,4,6-pyrimidinethrione I and 1.342 g (0.011 mol) of 2-hydroxybenzaldehyde IIe. The yield of compound IIIe is 85%.

Claims (1)

Способ получения 5-(арилметилен)гексагидропиримидин-2,4,6-трионов общей формулы III
Figure 00000006

основанный на реакции конденсации при нагревании 2,4,6-пиримидинтриона в течение 45 минут с 1,1-кратном избытком ароматических альдегидов в этаноле.
The method of obtaining 5- (arylmethylene) hexahydropyrimidine-2,4,6-trion of the General formula III
Figure 00000006

based on a condensation reaction by heating 2,4,6-pyrimidinethrione for 45 minutes with a 1.1-fold excess of aromatic aldehydes in ethanol.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU175969A1 (en) * Д. А. Драпкина, В. Г. Брудзь, Я. А. Терской, Н. И. Дорошина, И. П. Плитина , О. Н. Королькова The method of producing lumogen red 630- (639) - 5-
GB2094493B (en) * 1981-01-16 1984-10-31 Fuji Photo Film Co Ltd Electrophotographic sensitive materials
SU1129202A1 (en) * 1981-09-08 1984-12-15 Предприятие П/Я Г-4740 Process for preparing 2-arylidenecarbonyl compounds
WO2010136804A1 (en) * 2009-05-28 2010-12-02 Aston University Pyrimidine derivatives for use as antibiotics

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU175969A1 (en) * Д. А. Драпкина, В. Г. Брудзь, Я. А. Терской, Н. И. Дорошина, И. П. Плитина , О. Н. Королькова The method of producing lumogen red 630- (639) - 5-
GB2094493B (en) * 1981-01-16 1984-10-31 Fuji Photo Film Co Ltd Electrophotographic sensitive materials
SU1129202A1 (en) * 1981-09-08 1984-12-15 Предприятие П/Я Г-4740 Process for preparing 2-arylidenecarbonyl compounds
WO2010136804A1 (en) * 2009-05-28 2010-12-02 Aston University Pyrimidine derivatives for use as antibiotics

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GOUDGAON, N. M.et al.,Synthesis and antimicrobial activities of novel 5-substituted pyrimidin-2,4,6-triones, Journal of the Indian Chemical Society, 2010, 87(6), 743-748 (English),Найдено CAS(STN), 153:580239/. THIRUPATHI, G.et al,Facile and green syntheses of 5-arylidene-pyrimidine-2,4,6-triones and 5-arylidene-2-thioxo-dihydro-pyrimidine-4,6-diones using L-tyrosine as an efficient and eco-friendly catalyst in aqueous medium, Chemical Science Transactions, 2013, 2(2), 441-446 (English). *

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