SU172761A1 - METHOD FOR OBTAINING SUBSTITUTED 4-OXYHEXYHYDROPYRIMIDINTHION-2u! I5A '; jY:; ilA - Google Patents
METHOD FOR OBTAINING SUBSTITUTED 4-OXYHEXYHYDROPYRIMIDINTHION-2u! I5A '; jY:; ilAInfo
- Publication number
- SU172761A1 SU172761A1 SU889376A SU889376A SU172761A1 SU 172761 A1 SU172761 A1 SU 172761A1 SU 889376 A SU889376 A SU 889376A SU 889376 A SU889376 A SU 889376A SU 172761 A1 SU172761 A1 SU 172761A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- oxyhexyhydropyrimidinthion
- ila
- obtaining substituted
- water
- calculated
- Prior art date
Links
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- 150000002576 ketones Chemical class 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 150000003141 primary amines Chemical class 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N Thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 1
- 230000000111 anti-oxidant Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 125000001145 hydrido group Chemical group *[H] 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- BAVYZALUXZFZLV-UHFFFAOYSA-N methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Description
Изобретение касаетс соединений, которые могут найти применение в качестве ускорителей вулканизации каучуков, противостарителей и антиозонантов дл резин. Известно получение 4-оксигексагидропиримидинтионов-2 взаимодействием а,р-непредельных кетонов с тиомочевиной в щелочной среде. Предлагаемый способ получени замещенных 4-оксигексагидропиримидинтиона-2 общей формулы ( где R Н; RI Н; СНз R2 Н; СНз; Rj СНз; Ri alk, арил) заключаетс во взаимодействии ,а,р-непредельных кетонов с роданистоводородной кислотой с последующей обработкой полученных р-изотиоцианкетонов первичными аминами. НОЙ серной кислоты в 20 мл воды и 42 г роданистого кали в равном количестве воды, перемещивают при 20°С в течение 2 час. Органический слой промывают водой до нейтральной реакции, сущат и перегон ют. Получают 29,7 г (5Э%) 3-метил-2-изотиоцианпентанона-4 с т. кип. 102-110°С при 8 км рт. ст.; п 1,5078; d42o 0,9445; MR найденное 45,10; вычисленное 45,64. Найдено,%: С 53,54; Н 6,96. Вычислено, % : С 53,47; Н 7,06. CvHiiNaS. П р и мер 2. К смеси, содержащей 33,3 г 2-метил-1-изотиоцианбутанона-3, 63,4 мл воды и 1,06 мл концентрированной сол ной кислоты при интенсивном перемещивании в течение 25 мин при комнатной температуре прибавл ют 15 г Н. ироииламина в виде 30%-кого водного раствора. После 2-часового иеремещивани выпадают белые кристаллы. Перемещивание иродолл ают еще в течение 6 час при комнатной температуре. После фильтрации , Промывани ацетоном и высущивани в вакуум-эксикаторе получают 34,5 г (72i%) 4-окси-4,5- диметил-3-д- пропилгексагидропиримидинтиона-2 с т. пл. 100-101°С (из ацетона ) .The invention relates to compounds that can be used as accelerators for the vulcanization of rubbers, antioxidants and antiozonants for rubber. It is known to prepare 4-hydroxyhexyl-pyrimidinethion-2 by the interaction of a, p-unsaturated ketones with thiourea in an alkaline medium. The proposed method for the preparation of substituted 4-hydroxyhexahydropyrimidinethion-2 of the general formula (where R is H; RI H; CH3; RH; CH3; Rj CH3; Ri alk, aryl) consists in the reaction of p-isothiocyanetone primary amines. NOY sulfuric acid in 20 ml of water and 42 g of roently potassium in an equal amount of water, move at 20 ° C for 2 hours. The organic layer is washed with water until neutral, dried and distilled. This gives 29.7 g (5E%) of 3-methyl-2-isothiocyanopentanone-4 with m kip. 102-110 ° С at 8 km of mercury v .; p 1.5078; d42o 0.9445; MR found 45.10; calculated 45.64. Found,%: C 53.54; H 6.96. Calculated,%: C, 53.47; H 7.06. CvHiiNaS. PR and measures 2. To a mixture containing 33.3 g of 2-methyl-1-isothiocyanobutanone-3, 63.4 ml of water and 1.06 ml of concentrated hydrochloric acid are added during intensive 25 minutes at room temperature. 15 g of N. iroiilamin in the form of a 30% aqueous solution. After a 2 hour shift, white crystals precipitate. Transfer the Irodollate for another 6 hours at room temperature. After filtration, washing with acetone and drying in a vacuum desiccator, 34.5 g (72i%) of 4-hydroxy-4,5-dimethyl-3-d-propyl hexahydropyrimidinethione-2 with a m.p. 100-101 ° C (from acetone).
Вычислено, 1%: С 53,42; Н 8,97; N43,85.Calculated: 1%: C, 53.42; H 8.97; N43.85.
Пример 3. К смеси 25 г 2-метил-1-изотиоцианбутанона-3 , 50 мл воды и 0,4 мл концентрированной серной кислоты при интенсивном перемешивании прибавл ют 16,2 г анилина. Перемешивание продолжают при ко.мнатной температзфе в течение 10 час. Образовавшийс маслообразный продукт при охлаждении до постепенно закристал.лкзовывалс . Получают 23,4 г (56%) 4-окси-4,5димети„1 -3- фепилгексагидропиримидиитиоиа-2 в виде белого кристаллического вещества с т. пл. 129-130°С после перекристаллизацик из метанола.Example 3. To a mixture of 25 g of 2-methyl-1-isothiocyanbutanone-3, 50 ml of water and 0.4 ml of concentrated sulfuric acid with vigorous stirring was added 16.2 g of aniline. Stirring is continued at room temperature for 10 hours. The oily product formed was cooled to crystallize until cooled. This gives 23.4 g (56%) of 4-hydroxy-4,5-dimethyl “1 -3-phenylhexahydropyrimidithioia-2” in the form of a white crystalline substance with m.p. 129-130 ° C after recrystallization from methanol.
Найдено, i%: С 61,42; Н 7,06.Found, i%: C, 61.42; H 7.06.
CiaHisNoOS.CiaHisNoOS.
Вычислено, %: С 60,07; Н6,84.Calculated,%: C 60.07; H6.84.
Пример 4. К смеси, содержащей 20,7 г 1-изотиоцианбутанона-З в 44 жл воды и 0,73 мл концентрированной сол ной кислоты, при интенсивном перемешивании прибавл ютExample 4. To a mixture containing 20.7 g of 1-isothiocyanbutanone-3 in 44 g of water and 0.73 ml of concentrated hydrochloric acid, with vigorous stirring, add
в течение 30 шн 5,5 г метиламина в виде 3Ci%-Horo водного раствора. Перемешивание продолжают еще 1,5 час при 65-75°С. После охлаждени выпадает белое кристаллическое вещество.over 30 shn 5.5 g of methylamine in the form of a 3Ci% -Horo aqueous solution. Stirring is continued for another 1.5 hours at 65-75 ° C. After cooling, a white crystalline substance precipitates.
Получают 17,9 г (70%) 4-окси-3,4-диметилгексагидропиридинтиона-2 с т. пл. 85-86°С после перекристаллизации из ацетона.Obtain 17.9 g (70%) of 4-hydroxy-3,4-dimethylhexahydropyridine-2 with so pl. 85-86 ° C after recrystallization from acetone.
Найдено, о/(,: С 45,31; Н 7,64;N 17,66.Found, o / (,: C 45.31; H 7.64; N 17.66.
QHiaNoOS.QHiaNoOS.
Вычислено, %: С 44,96; Н7,56; N47,48.Calculated,%: C, 44.96; H7.56; N47.48.
Предмет изобретени Subject invention
Способ получени замещенных 4-оксигексагидропиримидинтиона-2 на основе а,|3-непредельных кетонов, отличающийс тем, что, а,р-непредельные кетоны подвергают взаимодействию с роданистоводородной кислотой с последующей обработкой полученных р-изотиоцианкето ов первичными аминами.A process for the preparation of substituted 4-hydroxyhexhydropyrimidinethion-2 based on a, 3-unsaturated ketones, characterized in that, a, p-unsaturated ketones are reacted with hydro genic acid with the subsequent treatment of the p-isothiocyanates with primary amines.
Publications (2)
Publication Number | Publication Date |
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SU172761A1 true SU172761A1 (en) | |
SU172762A1 SU172762A1 (en) |
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