SU873871A3 - Method of preparing phenylacetic acid derivatives - Google Patents
Method of preparing phenylacetic acid derivatives Download PDFInfo
- Publication number
- SU873871A3 SU873871A3 SU792804803A SU2804803A SU873871A3 SU 873871 A3 SU873871 A3 SU 873871A3 SU 792804803 A SU792804803 A SU 792804803A SU 2804803 A SU2804803 A SU 2804803A SU 873871 A3 SU873871 A3 SU 873871A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- carboxylic acid
- chloro
- ether
- water
- mixture
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
- C07D263/02—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings
- C07D263/08—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D263/10—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/45—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation
- C07C45/46—Friedel-Crafts reactions
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/63—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by introduction of halogen; by substitution of halogen atoms by other halogen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/76—Ketones containing a keto group bound to a six-membered aromatic ring
- C07C49/782—Ketones containing a keto group bound to a six-membered aromatic ring polycyclic
- C07C49/792—Ketones containing a keto group bound to a six-membered aromatic ring polycyclic containing rings other than six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/76—Ketones containing a keto group bound to a six-membered aromatic ring
- C07C49/80—Ketones containing a keto group bound to a six-membered aromatic ring containing halogen
- C07C49/813—Ketones containing a keto group bound to a six-membered aromatic ring containing halogen polycyclic
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/08—Preparation of carboxylic acids or their salts, halides or anhydrides from nitriles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
- C07C51/36—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by hydrogenation of carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
- C07C51/367—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by introduction of functional groups containing oxygen only in singly bound form
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
- C07C51/377—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
- C07C51/377—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups
- C07C51/38—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups by decarboxylation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/41—Preparation of salts of carboxylic acids
- C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C57/00—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms
- C07C57/46—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms containing six-membered aromatic rings and other rings, e.g. cyclohexylphenylacetic acid
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C57/00—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms
- C07C57/52—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms containing halogen
- C07C57/62—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms containing halogen containing six-membered aromatic rings and other rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
- C07C59/40—Unsaturated compounds
- C07C59/76—Unsaturated compounds containing keto groups
- C07C59/86—Unsaturated compounds containing keto groups containing six-membered aromatic rings and other rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C61/00—Compounds having carboxyl groups bound to carbon atoms of rings other than six-membered aromatic rings
- C07C61/16—Unsaturated compounds
- C07C61/40—Unsaturated compounds containing halogen
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C62/00—Compounds having carboxyl groups bound to carbon atoms of rings other than six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
- C07C62/30—Unsaturated compounds
- C07C62/36—Unsaturated compounds containing —CHO groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C62/00—Compounds having carboxyl groups bound to carbon atoms of rings other than six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
- C07C62/30—Unsaturated compounds
- C07C62/38—Unsaturated compounds containing keto groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
- C07D263/02—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings
- C07D263/08—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D263/10—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
- C07D263/12—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms with radicals containing only hydrogen and carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/06—Systems containing only non-condensed rings with a five-membered ring
- C07C2601/08—Systems containing only non-condensed rings with a five-membered ring the ring being saturated
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/14—The ring being saturated
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Изобретение относится к получению новых производных фенилуксусной кислоты общей формулыThe invention relates to the preparation of new phenylacetic acid derivatives of the general formula
где - атом водорода или галогена;where is a hydrogen or halogen atom;
Р2- атом водорода или вместе с образует этиленовую группу;P 2 is a hydrogen atom or together with forms an ethylene group;
Ry - низший алкил, если Rq_ - атом водорода. 15Ry is lower alkyl if Rq_ is a hydrogen atom. fifteen
Указанные соединения общей формулы I обладают физиологической активностью.These compounds of general formula I have physiological activity.
Известен способ получения производных фенилуксусной кислоты обшей формулы I, основанный на известной реакции вое- 20 становления соединений,содержащих кетогруппу Г1].A known method for producing derivatives of phenylacetic acid of general formula I, based on the known reaction of the formation of compounds containing keto group G1].
Целью изобретения является расширение ассортимента физиопогически-активных соединений, обладающих улучшенными 25 свойствами по сравнению с известными физиологически-активными соединениями аналогичного строения, например 2-(4-изопропилфенил)-пропионовой кислотой. Цель достигается тем, что согласно способу получения производных фенилуксусной кислоты обшей формулы I соединение об!чей формулыThe aim of the invention is to expand the range of physiologically active compounds with improved 25 properties compared with the known physiologically active compounds of a similar structure, for example 2- (4-isopropylphenyl) -propionic acid. The goal is achieved by the fact that according to the method for producing phenylacetic acid derivatives of general formula I, a compound of the general formula
где R^, Rj имеют указанные значения, подвергают обработке гицраэингидра— том при температуре 200-22О°С в среде высококипящего растворителя в присутствии гидроокиси щелочного металла с поо ледуюшим выделением целевого продукта.where R ^, Rj have the indicated meanings, they are subjected to treatment with gitsraine hydrate at a temperature of 200-22 ° C in a medium of high boiling solvent in the presence of alkali metal hydroxide with the subsequent isolation of the target product.
Пример1. а) 10 г 6-длориндан-1-карбоновой кислоты смешивают сExample 1. a) 10 g of 6-dlorindan-1-carboxylic acid are mixed with
100 мл абсолютного цихлорметана с 12 г хлористого алюминия и охлаждают до -40°С. В эту смесь 30 мин по каплям добавляют раствор 8,0 г 1,1-цихлорметилметилового эфира в 50 мл цихлорметана. Реакционную смесь перемешивают еще 30 мин при -40°С, она нагревается и ее вливают в 100 г льда пр·; перемешивании. Затем дихлорметановую фазу отделяют, испаряют в вакууме, остаток кристаллизу- j ют из толуола и получают 8,8 г 6-хлор-5-формйлиндан-1-карбоновую кислоту с т.пл. 162° С;100 ml of absolute cichloromethane with 12 g of aluminum chloride and cooled to -40 ° C. A solution of 8.0 g of 1,1-cichloromethyl methyl ether in 50 ml of cichloromethane is added dropwise to this mixture over 30 minutes. The reaction mixture is stirred for another 30 min at -40 ° C, it is heated and it is poured into 100 g of ice pr ·; stirring. Then the dichloromethane phase is separated, evaporated in vacuo, the residue is crystallized from toluene and 8.8 g of 6-chloro-5-formylindan-1-carboxylic acid are obtained with mp. 162 ° C;
б) 5 г 6-хлор-5-формипинцан-1—карбоновой кислоты смешивают с 20 мл абсолютного этанола и 1,5 мл концентрированной серной кислоты и 4 .ч нагревают при температуре кипения флегмы. Затем реакционную смесь выливают в 50 мл воды, экстрагируют хлороформом, хлороформную фазу 'промывают водой, высушивают над сульфатом натрия и ее испаряют в вакууме, остаток .очищают путем дистилляции в трубке с шаровым расширением и получают 4,2 г этилового эфира 6-хлор-5-формилинцан-1-карбоновой кислоты с т. кип. 150°С при 0,04 мм рт.ст.;b) 5 g of 6-chloro-5-formipinzan-1-carboxylic acid are mixed with 20 ml of absolute ethanol and 1.5 ml of concentrated sulfuric acid, and for 4 hours it is heated under reflux. Then the reaction mixture is poured into 50 ml of water, extracted with chloroform, the chloroform phase is washed with water, dried over sodium sulfate and evaporated in vacuo, the residue is purified by distillation in a tube with ball expansion and 4.2 g of 6-chloro ethyl ether are obtained 5-formilinzan-1-carboxylic acid with so on. 150 ° C at 0.04 mm Hg;
в) 304 мг этилового эфира 5-хлор-5-формилинцан-2-карбоновой кислоты растворяют в 10 мп этанола и при перемешивании по каплям добавляют в смесь 21 кг боргидрица натрия и 10 мл этанола. Реакционную смесь перемешивают 4 ч при 8ОиС и смешивают ее с 50 мл 10%-ной серной кислоты. Затем экстрагируют смесь хлороформом, фазу хлороформа промывают водой, высушивают нац сульфатом натрия, испаряют в вакууме и получают 200 мг этилового эфира б-хлор-5-оксиметил-инцан-1-карбоновой кислоты в вице масла;c) 304 mg of 5-chloro-5-formylinzan-2-carboxylic acid ethyl ester is dissolved in 10 mp ethanol and 21 kg of sodium borohydride and 10 ml of ethanol are added dropwise to the mixture. The reaction mixture was stirred for 4 hours and at 8 ° C and it is mixed with 50 ml of 10% sulfuric acid. The mixture is then extracted with chloroform, the chloroform phase is washed with water, dried with sodium sulfate, evaporated in vacuo and 200 mg of b-chloro-5-hydroxymethyl-incane-1-carboxylic acid ethyl ester are obtained in vice oil;
г) Смесь из 6,5 г тионилхлорица, 5 мл бензола и капли пиридина по каплям добавляют в раствор 1,2 г этилового эфира 6-хлор-5-оксиметил-инцан-1-карбоновой кислоты. Затем реакционную смесь нагревают 1 ч при температуре кипения флегмы, смесь охлаждают и выливают в ледяную воду. Бензольную фазу промывают водой, высушивают нац сульфатом натрия, испаряют в вакууме и получают 300 мг этилового эфира б-хлор-5-хлорметил-индан-1-карбоновой кислоты;g) A mixture of 6.5 g of thionyl chloride, 5 ml of benzene and a drop of pyridine is added dropwise to a solution of 1.2 g of 6-chloro-5-hydroxymethyl-incane-1-carboxylic acid ethyl ester. Then the reaction mixture is heated for 1 h at reflux, the mixture is cooled and poured into ice water. The benzene phase is washed with water, dried with sodium sulfate, evaporated in vacuo and 300 mg of b-chloro-5-chloromethyl-indan-1-carboxylic acid ethyl ester are obtained;
ц) 2,2 г этилового эфира 6-хлор-5-хлорметил-инцан-1-карбоновой кислоты, растворенных в 20 мл абсолютного этанола, смешивают с 1,38 калиевой соли этилового эфира циклопентан-2—он-1—карбоновой кислоты и 6 ч нагревают при температуре кипения флегмы. Затем к реакционной триг смеси добавляют 40 мл воды, экстрагируют эфиром, промывают эфирную фазу водой, высушивают ее нац сульфатом натрия и испаряют в вакууме.c) 2.2 g of ethyl 6-chloro-5-chloromethyl-incan-1-carboxylic acid ethyl ester dissolved in 20 ml of absolute ethanol are mixed with 1.38 cyclopentane-2-on-1-carboxylic acid ethyl ester potassium salts and 6 hours heated at reflux. Then, 40 ml of water is added to the reaction trigger of the mixture, extracted with ether, the ether phase is washed with water, dried with sodium sulfate and evaporated in vacuo.
Остаток 8 ч нагревают в. 20 мл 10%-ной водной серной кислоте при кипении флегмы. Реакционную смесь охлаждают, смешивают с разбавленным раствором едкого натрия до слабо щелочной реакции, экстрагируют эфиром, водную фазу подкисляют и снова экстрагируют эфиром. Эфирный экстракт кислой экстракции промывают водой,- высушивают нац сульфатом натрия и получают 6-хлор-5(2-оксициклопентилметил)-инцан-1—карбоновую кислоту с т.пл. 126°С (из петролейного эфира).The remainder of 8 hours is heated in. 20 ml of 10% aqueous sulfuric acid with reflux. The reaction mixture is cooled, mixed with a dilute sodium hydroxide solution to a slightly alkaline reaction, extracted with ether, the aqueous phase is acidified and again extracted with ether. The ethereal extraction extract is washed with water, dried with sodium sulfate, and 6-chloro-5 (2-hydroxycyclopentylmethyl) -incan-1 — carboxylic acid with mp 126 ° C (from petroleum ether).
Это вещество смешивают с 15 мл гликоля? 1 г гидроокиси натрия и 10 гицразингицрата, нагревают 2 ч доIs this substance mixed with 15 ml of glycol ? 1 g of sodium hydroxide and 10 gizrazingitsrata, heated for 2 hours to
200°С, подкисляют соляной кислотой и экстрагируют хлороформом.200 ° C, acidified with hydrochloric acid and extracted with chloroform.
Хлороформовую фазу промывают водой, высушивают нац сульфатом натрия, испаряют в вакууме и получают 6-хлор-5-циклоп ентилметил-ин дан-1 -карбоновую кислоту в вице масла.The chloroform phase is washed with water, dried with sodium sulfate, evaporated in vacuo to give 6-chloro-5-cyclopentylmethyl-in-dan-1-carboxylic acid in vice oil.
П р и м е р 2. а) 0,50 г циклопентанона и 1,35 г 6-хлор-5-формилинцан- 1-карбоновой кислоты перемешивают в смеси, состоящей из 6,2 мл уксусной кислоты и 2 мл концентрированной серной кислоты 1 ч при 20°С. После этого реакционную смесь выливают в воду со льдом и экстрагируют эфиром. Эфирную фазу про мывают до нейтральной реакции и испаряют. Остаток хроматографируют через колонку с силикагелем (циклогексан 325 ч.+ толуол 160 ч + этиловый эфир 190 ч.+ уксусная кислота 19 ч). Получают 0,41 гPRI me R 2. a) 0.50 g of cyclopentanone and 1.35 g of 6-chloro-5-formilinzan-1-carboxylic acid are mixed in a mixture consisting of 6.2 ml of acetic acid and 2 ml of concentrated sulfuric acid 1 h at 20 ° C. After that, the reaction mixture was poured into ice water and extracted with ether. The ether phase is washed to a neutral reaction and evaporated. The residue is chromatographed over a silica gel column (cyclohexane 325 parts + toluene 160 parts + ethyl ether 190 parts + acetic acid 19 hours). 0.41 g is obtained.
6-хлор-5-( 2-оксопентилиценметил )-инцан-1-карбоновой кислоты с т.пл. 170°С;6-chloro-5- (2-oxopentylicenemethyl) -incan-1-carboxylic acid with mp 170 ° C;
б) 2,5 г 6-хдор-5-(2-оксопентилиценметил)-индан-1-карбоновой кислоты смешивают с 1,3 г гидразингидрата, 26 г гидроокиси натрия и 40 мл тригликоля и 2 ч нагревают до 200-220 С. После охлаждения смешивают с водой, подкисляют разбавленной соляной кислотой и экстрагируют эфиром. Эфирную фазу промывают водой, испаряют и остаток перекристал- , лизовывают из бензина. Получают 0,9 гb) 2.5 g of 6-chdor-5- (2-oxopentylcenylmethyl) -indan-1-carboxylic acid are mixed with 1.3 g of hydrazine hydrate, 26 g of sodium hydroxide and 40 ml of triglycol and heated to 200-220 ° C. for 2 hours. After cooling, it is mixed with water, acidified with dilute hydrochloric acid and extracted with ether. The ether phase is washed with water, evaporated and the residue is recrystallized, lysed from gasoline. 0.9 g is obtained.
6-хлор-5-циклопентилметил-индан-1-карбоновой кислоты с т.пл. 126°С.6-chloro-5-cyclopentylmethyl-indan-1-carboxylic acid with so pl. 126 ° C.
Пример 3. Из циклопентанона и 2- (4-формилфенил) -пропионовой кислоты, как описано в примере. 12а, получают 2-(4-2-оксопентилиценметил)-фенил-пропионовую кислоту с т.пл. 158°С. Из нее,'как описано в примере 2 б, в результате восстановления карбонильной группы .получают 2- (4-цикл опентили денметил) -фенил-пропионовую кислоту с т.пл. 87°С.Example 3. From cyclopentanone and 2- (4-formylphenyl) propionic acid, as described in the example. 12a, 2- (4-2-oxopentylcenomethyl) phenylpropionic acid is obtained with a melting point of 158 ° C. From it, 'as described in example 2 b, as a result of the reduction of the carbonyl group, 2- (4-cycle optenyl-denmethyl) -phenyl-propionic acid is obtained with mp. 87 ° C.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782826437 DE2826437A1 (en) | 1978-06-14 | 1978-06-14 | 4-Cycloalkyl:methyl-phenyl-acetic acid derivs. - useful as antiinflammatories e.g. for treating arthritis |
Publications (1)
Publication Number | Publication Date |
---|---|
SU873871A3 true SU873871A3 (en) | 1981-10-15 |
Family
ID=6041974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU792804803A SU873871A3 (en) | 1978-06-14 | 1979-08-29 | Method of preparing phenylacetic acid derivatives |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2826437A1 (en) |
SU (1) | SU873871A3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE8400239D0 (en) * | 1984-01-19 | 1984-01-19 | Pharmacia Ab | NEW ARYLETIC ACID DERIVATIVES |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4028404A (en) * | 1967-07-31 | 1977-06-07 | Allen & Hanburys Limited | Acetic acid derivatives |
US3839431A (en) * | 1970-07-13 | 1974-10-01 | Squibb & Sons Inc | Cyclopropylmethylphenylacetic acids and derivatives |
-
1978
- 1978-06-14 DE DE19782826437 patent/DE2826437A1/en not_active Withdrawn
-
1979
- 1979-08-29 SU SU792804803A patent/SU873871A3/en active
Also Published As
Publication number | Publication date |
---|---|
DE2826437A1 (en) | 1980-01-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SU1151211A3 (en) | Method of obtaining 5-aroyl-1,2-dihydro-3h-pyrrole /1,2-a/-pyrrole-1-carboxylic acid | |
US3647858A (en) | Process for preparing 1-benzylidene-3-indenyl acetic acids | |
US3784697A (en) | Pharmaceutical composition containing phenoxyalkane-carboxylic acids,salts and esters thereof | |
US4110337A (en) | Triazolobenzodiazepines | |
US3484445A (en) | Derivatives of chromone-2-carboxylic acid | |
JPH0347256B2 (en) | ||
EP0257882B1 (en) | N-phenyl butenamides with pharmaceutical properties | |
IL45585A (en) | 6,11-dihydrodibenz(b,e)oxepin-acetic acids and derivative | |
US3822310A (en) | Substituted indenyl acetic acids | |
JPS6185335A (en) | 1-substituted tetralin derivative | |
US4247706A (en) | Dibenzothiepin derivatives and a process for producing the same | |
IE46699B1 (en) | 11,12-secoprostaglandins | |
US3468939A (en) | 4- and 5-aryl-1-naphthaleneacetic acid compounds | |
US4042706A (en) | Novel anti-inflammatory pyrazole derivatives and preparation thereof | |
SU873871A3 (en) | Method of preparing phenylacetic acid derivatives | |
US4283420A (en) | Pharmaceutically active cyclohexyl compounds and their preparation | |
HU200450B (en) | Process for production of derivatives of aroil-benzofurane and benzotiophen acetic acid and prophionic acid | |
JPH0278675A (en) | Benzofuranyl acetic acid derivative, its production, viscous liquid controller and antihistamines | |
FR2803846A1 (en) | 3- (1-HYDROXY-PENTYLIDENE) -5-NITRO-3H-BENZOFURAN-2-ONE, PROCESS FOR PREPARING THE SAME AND USE THEREOF | |
JPS6045631B2 (en) | Production method of phenylglyoxalic acid ester | |
JPS62273957A (en) | Manufacture of 4-hydroxy-quinoline-3-carboxylic acid | |
US4118504A (en) | Isoindoline derivatives for treating pain | |
CS216205B2 (en) | Method of making the derivatives of the 1,4-diphenylpyrazole | |
US4154756A (en) | 2-Substituted-4'-(monoalkylamino)-acetophenones | |
US3168529A (en) | 1-(p-lower alkanoylphenyl)-5-arylpyrrole-2-propionic acid compounds |