SU198527A1 - METHOD OF OBTAINING p-PHENYL-^ AMINO ACID ACID - Google Patents
METHOD OF OBTAINING p-PHENYL-^ AMINO ACID ACIDInfo
- Publication number
- SU198527A1 SU198527A1 SU1034625A SU1034625A SU198527A1 SU 198527 A1 SU198527 A1 SU 198527A1 SU 1034625 A SU1034625 A SU 1034625A SU 1034625 A SU1034625 A SU 1034625A SU 198527 A1 SU198527 A1 SU 198527A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- acid
- phenyl
- obtaining
- amino acid
- ammonia
- Prior art date
Links
- 239000002253 acid Substances 0.000 title description 3
- 150000001413 amino acids Chemical class 0.000 title 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 5
- FOCAUTSVDIKZOP-UHFFFAOYSA-N Chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 229940106681 chloroacetic acid Drugs 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 159000000000 sodium salts Chemical class 0.000 description 3
- SUSQOBVLVYHIEX-UHFFFAOYSA-N Benzyl cyanide Chemical compound N#CCC1=CC=CC=C1 SUSQOBVLVYHIEX-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 150000003385 sodium Chemical class 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- JGUQDUKBUKFFRO-CIIODKQPSA-N Dimethylglyoxime Chemical compound O/N=C(/C)\C(\C)=N\O JGUQDUKBUKFFRO-CIIODKQPSA-N 0.000 description 1
- 239000007868 Raney catalyst Substances 0.000 description 1
- 229910000564 Raney nickel Inorganic materials 0.000 description 1
- ODZPKZBBUMBTMG-UHFFFAOYSA-N Sodium amide Chemical compound [NH2-].[Na+] ODZPKZBBUMBTMG-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005903 acid hydrolysis reaction Methods 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000005712 crystallization Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drugs Drugs 0.000 description 1
- 239000012259 ether extract Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000001671 psychotherapy Methods 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001225 therapeutic Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
Известны способы получени р-фенил- аминомасл ной кислоты, используемой в качестве лечебного препарата в психотерапии, например, методом кислотного гидролиза 4-фенил-3-карбэтоксипирролидона-2.Methods are known for preparing p-phenyl-aminobutyric acid used as a therapeutic drug in psychotherapy, for example, by acid hydrolysis of 4-phenyl-3-carboethoxypyrrolidone-2.
Сущность предложенного способа заключаетс в том, что натриевую соль хлоруксусной кислоты обрабатывают натриевым производным цианистого бензила с последующим гидрированием образующегос продукта в водном растворе аммиака в присутствии катализатора , например никел Рене .The essence of the proposed method is that the sodium salt of chloroacetic acid is treated with a sodium derivative of benzyl cyanide, followed by hydrogenation of the resulting product in an aqueous solution of ammonia in the presence of a catalyst, such as Raney nickel.
Пример. К суспензии амида натри , приготовленной из 25,35 г металлического натри и 1,5 л жидкого аммиака, по капл м в течение 20 мин добавл ют 117 г цианистого бензила . К полученному раствору в течение 30 мин добавл ют 116 г сухой натриевой соли хлоруксусной кислоты, перемешивают 1 час, удал ют аммиак и добавл ют 250 мл эфира и 400 мл воды. Эфирный слой отдел ют , а водный дважды экстрагируют эфиром (по 100 мл). Экстракт сушат, отгон ют эфир и выдел ют 10,95 г цианистого бензила. Водный слой подкисл ют концентрированной сол ной кислотой до рН 5, экстрагируют выделившеес масло эфиром (3 раза по 150 мл), эфирные выт жки сушат и отгон ют растворитель . Получают 168 г неочищенного р-фенил-р-цианпропионовой кислоты (91о/о от теоретического количества). Раствор 10,3 г этой кислоты в 150 мл 40/о-ного водного аммиака гидрируют при нормальных услови х в присутствии равновесного количества никел Рене до прекращени поглощени водорода. Катализатор отфильтровывают, промывают 20 мл 4%-ноге аммиака н добавл ют к фильтрату 130 мл 2о/о-ного спиртового раствора диметилглиоксима. Выделившийс осадок отфильтровывают, фильтрат обрабатывают при нагревании углем, упаривают до начала кристаллизации, добавл ют 180 мл спирта и охлаждают до 0°С. Через 6 час осадок отфильтровывают, промывают 20 мл спирта и сушат.Example. To a suspension of sodium amide prepared from 25.35 g of metallic sodium and 1.5 liters of liquid ammonia, 117 g of benzyl cyanide are added dropwise over the course of 20 minutes. 116 g of dry sodium salt of chloroacetic acid are added to the obtained solution over 30 minutes, stirred for 1 hour, ammonia is removed, and 250 ml of ether and 400 ml of water are added. The ether layer is separated and the aqueous layer is extracted twice with ether (100 ml each). The extract is dried, the ether is distilled off and 10.95 g of benzyl cyanide is isolated. The aqueous layer is acidified with concentrated hydrochloric acid to pH 5, the separated oil is extracted with ether (3 times 150 ml), the ether extracts are dried and the solvent is distilled off. Receive 168 g of crude p-phenyl-p-cyanopropionic acid (91o / o from the theoretical amount). A solution of 10.3 g of this acid in 150 ml of 40 / aqueous aqueous ammonia is hydrogenated under normal conditions in the presence of an equilibrium amount of Rene nickel until the absorption of hydrogen ceases. The catalyst is filtered off, washed with 20 ml of 4% ammonia n and 130 ml of 2% / d-alcoholic dimethylglyoxime are added to the filtrate. The precipitated precipitate is filtered off, the filtrate is treated by heating with charcoal, evaporated before crystallization starts, 180 ml of alcohol is added and cooled to 0 ° C. After 6 hours, the precipitate is filtered off, washed with 20 ml of alcohol and dried.
Получают 6,1 г р-фенил- -амиио.масл ной кислоты с т. пл. 208-209°С.6.1 g of p-phenyl-α-amino-butyric acid are obtained with a mp. 208-209 ° C.
2020
Предмет изобретени Subject invention
Способ получени р-фенил-у-алпиюмасл ной кислоты, отличающийс тем, что натриевую соль хлоруксусной кислоты обрабатывают натриевым производным цианистого бензила с последующим гидрированием образующегос производного в водном растворе аммиака в присутствии катализатора, например никел Рене .A method of producing p-phenyl-y-alpium oil, characterized in that the sodium salt of chloroacetic acid is treated with sodium derivative of benzyl cyanide, followed by hydrogenation of the resulting derivative in an aqueous solution of ammonia in the presence of a catalyst, such as René Nickel.
Publications (1)
Publication Number | Publication Date |
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SU198527A1 true SU198527A1 (en) |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4633864A (en) * | 1984-10-22 | 1987-01-06 | Dacomed Corporation | Speaking endotracheal tube |
WO1990010625A1 (en) * | 1989-03-13 | 1990-09-20 | Nauchno-Proizvodstvennoe Obiedinenie 'biolar' Akademii Nauk Sssr | OROTATE OF α-AMINO-β-PHENYL-BUTYRIC ACID |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4633864A (en) * | 1984-10-22 | 1987-01-06 | Dacomed Corporation | Speaking endotracheal tube |
WO1990010625A1 (en) * | 1989-03-13 | 1990-09-20 | Nauchno-Proizvodstvennoe Obiedinenie 'biolar' Akademii Nauk Sssr | OROTATE OF α-AMINO-β-PHENYL-BUTYRIC ACID |
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