NO124743B - - Google Patents
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- Publication number
- NO124743B NO124743B NO157259A NO15725965A NO124743B NO 124743 B NO124743 B NO 124743B NO 157259 A NO157259 A NO 157259A NO 15725965 A NO15725965 A NO 15725965A NO 124743 B NO124743 B NO 124743B
- Authority
- NO
- Norway
- Prior art keywords
- ethylenediamine
- tert
- butyl
- dimethyl
- phenyl
- Prior art date
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- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 13
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 7
- 229910021529 ammonia Inorganic materials 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- OSNIIMCBVLBNGS-UHFFFAOYSA-N 1-(1,3-benzodioxol-5-yl)-2-(dimethylamino)propan-1-one Chemical compound CN(C)C(C)C(=O)C1=CC=C2OCOC2=C1 OSNIIMCBVLBNGS-UHFFFAOYSA-N 0.000 claims description 3
- 125000002636 imidazolinyl group Chemical group 0.000 claims description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000012458 free base Substances 0.000 claims 2
- 239000000126 substance Substances 0.000 claims 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000003610 charcoal Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 150000002825 nitriles Chemical class 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- GJEAMHAFPYZYDE-UHFFFAOYSA-N [C].[S] Chemical compound [C].[S] GJEAMHAFPYZYDE-UHFFFAOYSA-N 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical compound C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000000052 vinegar Substances 0.000 description 2
- 235000021419 vinegar Nutrition 0.000 description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 description 1
- IPKVMFWHPAULEL-UHFFFAOYSA-N 2-iminoethanol Chemical compound OCC=N IPKVMFWHPAULEL-UHFFFAOYSA-N 0.000 description 1
- WUBBRNOQWQTFEX-UHFFFAOYSA-N 4-aminosalicylic acid Chemical compound NC1=CC=C(C(O)=O)C(O)=C1 WUBBRNOQWQTFEX-UHFFFAOYSA-N 0.000 description 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001409 amidines Chemical class 0.000 description 1
- 229960004909 aminosalicylic acid Drugs 0.000 description 1
- 238000010533 azeotropic distillation Methods 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- FLKYBGKDCCEQQM-WYUVZMMLSA-M cefazolin sodium Chemical compound [Na+].S1C(C)=NN=C1SCC1=C(C([O-])=O)N2C(=O)[C@@H](NC(=O)CN3N=NN=C3)[C@H]2SC1 FLKYBGKDCCEQQM-WYUVZMMLSA-M 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- CCIVGXIOQKPBKL-UHFFFAOYSA-M ethanesulfonate Chemical compound CCS([O-])(=O)=O CCIVGXIOQKPBKL-UHFFFAOYSA-M 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- YAMHXTCMCPHKLN-UHFFFAOYSA-N imidazolidin-2-one Chemical compound O=C1NCCN1 YAMHXTCMCPHKLN-UHFFFAOYSA-N 0.000 description 1
- 150000002462 imidazolines Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 150000003556 thioamides Chemical class 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/22—Use of propulsion power plant or units on vessels the propulsion power units being controlled from exterior of engine room, e.g. from navigation bridge; Arrangements of order telegraphs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- High-Pressure Fuel Injection Pump Control (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Fremgangsmåte til fremstilling av 2-(p-tert.-butyl-o,o'-dimetyl-fenyJ -metyl) -imidazolin. Process for the preparation of 2-(p-tert-butyl-o,o'-dimethyl-phenyl-methyl)-imidazoline.
Gjenstanden for foreliggende oppfinnelse er fremstilling av 2-(p-tert.-butyl-o,o'-dimetyl-fenyl-metyl) -imida- The object of the present invention is the production of 2-(p-tert.-butyl-o,o'-dimethyl-phenyl-methyl)-imida-
zolin med formelen zolin with the formula
samt dets salter. as well as its salts.
Den nye forbindelse har en karfor-minskende og blodtrykkstigende virkning og kan således anvendes som legemiddel. Spesielt er den egnet som middel til av-svelling av slimhuder, f. eks. i nesen. The new compound has a vessel-reducing and blood-pressure-raising effect and can thus be used as a medicine. In particular, it is suitable as a means of de-swelling mucous membranes, e.g. in the nose.
Det nye imidazolin fremstilles etter i og for seg kjente fremgangsmåter. Således fåes det, når man overfører p-tert.-butyl-o,o'-dimetylfenyl-eddiksyre eller et av dens funksjonelle syrederivater til 2-(p-tert.-butyl-o,o'-dimetyl-fenyl-metyl)-imidazolin. Således kan man f. eks. omsette p-tert.-butyl-o,o'-dimetyl-fenyl-eddiksyre eller et av dens funksjonelle syrederivater med etylendiamin eller med en forbindelse som ved omsetning med ammoniakk kan overføres til etylendiamin eller med et reaksjonsdyktig N-derivat av etylendiamin under direkte eller trinnvis dannelse av imidazolinringen. The new imidazoline is produced according to methods known per se. Thus, when one transfers p-tert.-butyl-o,o'-dimethylphenyl-acetic acid or one of its functional acid derivatives to 2-(p-tert.-butyl-o,o'-dimethyl-phenyl-methyl) -imidazoline. Thus, one can e.g. react p-tert.-butyl-o,o'-dimethyl-phenyl-acetic acid or one of its functional acid derivatives with ethylenediamine or with a compound which by reaction with ammonia can be transferred to ethylenediamine or with a reactive N-derivative of ethylenediamine under direct or stepwise formation of the imidazoline ring.
Som funksjonelle syrederivater kan anvendes f. eks. imidoeter, imidohalogenider, tioimidoeter, tioamider, amider, estere, Functional acid derivatives can be used, e.g. imidoethers, imidohalides, thioimidoethers, thioamides, amides, esters,
halogenider, amidiner og nitriler. I stedet for å benytte selve syrederivatene som ut- halides, amidines and nitriles. Instead of using the acid derivatives themselves as out-
gangsstoffer kan man også utføre fremgangsmåten under slike betingelser at disse oppstår under omsetningen. Omsetter man nitrilet direkte med etylendiaminet eller dets derivater, utføres reaksjonen fortrins-vis i nærvær av svovelvannstoff eller svo-velvannstoffdannende midler, f.eks. svovel-kullstoff. Omsetningen av nitrilet med etylendiaminet kan også foregå således at man anvender det siste i form av dets mo-no- eller disalter. intermediates, the method can also be carried out under such conditions that these occur during turnover. If the nitrile is reacted directly with the ethylenediamine or its derivatives, the reaction is preferably carried out in the presence of hydrogen sulphide or hydrogen sulphide-forming agents, e.g. sulphur-carbon. The reaction of the nitrile with the ethylenediamine can also take place in such a way that the latter is used in the form of its mono- or disalt.
Forbindelser som ved omsetning med ammoniakk kan overføres til etylendiamin er f. eks. iminoetanol og dets estere, videre etylendihalogenider. Ved denne utførelses-form av fremgangsmåten må det alt etter de anvendte omsetningskomponenter ar-beides i nærvær av ammoniakk eller ammo-niakkavgivende midler. Compounds which can be transferred to ethylenediamine by reaction with ammonia are e.g. iminoethanol and its esters, further ethylene dihalides. In this embodiment of the method, depending on the reaction components used, work must be done in the presence of ammonia or ammonia-releasing agents.
Reaksjonsdyktige N-derivater av etylendiamin som skal anvendes ifølge fremgangsmåten er slike som reagerer under dannelse av imidazoliner som ikke er sub-stituert ved nitrogenet, slik som f. eks. etylen-urinstoff. Reactive N-derivatives of ethylenediamine to be used according to the method are those which react to form imidazolines which are not substituted at the nitrogen, such as e.g. ethylene-urea.
Ved den trinnvise utførelse av fremgangsmåten omsettes f. eks. p-tert.-butyl.-o,o'-dimetyl-fenyl-eddiksyre eller et av In the step-by-step implementation of the method, e.g. p-tert.-butyl.-o,o'-dimethyl-phenyl-acetic acid or one of
dens funksjonelle syrederivater med etylendiaminet til tilsvarende acyletylendiamin, og av dette dannes imidazolinringen ved vannavspaltning, f. eks. med kalsiumoksyd. its functional acid derivatives with the ethylenediamine to the corresponding acylethylenediamine, and from this the imidazoline ring is formed by water splitting, e.g. with calcium oxide.
Forsøksbetingelsene kan være forskjel-lige alt etter utgangsstoffene. Således lar omsetningen seg utføre i nærvær eller fra-vær av fortynningsmidler og/eller konden-sasjonsmidler ved lavere eller høyere tem-peratur og forskjellig trykk, idet det også består den mulighet å fjerne dannede bi-produkter, slik som vann under azeotrop destillasjon. Videre kan den ene reaksjons-komponent anvendes i overskudd. The test conditions can be different depending on the starting materials. Thus, the reaction can be carried out in the presence or absence of diluents and/or condensing agents at lower or higher temperatures and different pressures, as there is also the possibility of removing formed by-products, such as water during azeotropic distillation. Furthermore, one reaction component can be used in excess.
Alt etter arbeidsmåten får man det nye imidazolin som base eller i form av dets salter. Av basen kan det fremstilles salter, slik som f. eks. av halogenvannstoffsyrer, svovelsyre, salpetersyre, fosforsyre, rhodan-vannstoffsyre, eddiksyre, propionsyre, ok-salsyre, eplesyre, sitronsyre, vinsyre, ben-soesyre, metansulfonsyre, etansulfonsyre, oksyetansulfonsyre, bensolsulfonsyre, sali-sylsyre, p-aminosalisylsyre eller toluolsul-fonsyre. Depending on the working method, the new imidazoline is obtained as a base or in the form of its salts. Salts can be produced from the base, such as of hydrohalic acids, sulfuric acid, nitric acid, phosphoric acid, rhodanic hydrogen acid, acetic acid, propionic acid, oxalic acid, malic acid, citric acid, tartaric acid, benzoic acid, methanesulfonic acid, ethanesulfonic acid, oxyethanesulfonic acid, benzenesulfonic acid, salicylic acid, p-aminosalicylic acid or toluenesulfonic acid .
De utgangsstoffer som skal anvendes ved foreliggende oppfinnelse er kjent eller lar seg fremstille etter i og for seg kjente fremgangsmåter. The starting materials to be used in the present invention are known or can be prepared according to methods known per se.
Oppfinnelsen beskrives nærmere i det følgende eksempel. Temperaturene er an-gitt i Celciusgrader. The invention is described in more detail in the following example. The temperatures are indicated in degrees Celsius.
Eksempel. Example.
62 g p-tert.-butyl-o,o'-dimetyl-fenyl-acetonitril (kan fåes f. eks. ifølge for-skriftene av Buu-Hoi og P. Cagniant, Bull. soc. chim. de France 9, 891 (1942)), 20,6 g etylendiamin (96 pst.'s) og 1,55 ems svovel-kullstoff opphetes sammen i en destiller-kolbe under utelukkelse av fuktighet i 48 timer på kokende vannbad. Det unnviker ammoniakk. Reaksjonsproduktet som størk-ner ved avkjøling oppløses i bensol, oppløs-ningen filtreres varm under tilsetning av dyrekull og tilsettes petroleter. Først fra-filtreres utskilte forurensninger, og ved videre tilsetning av petroleter bringes 2-(p-tert.-butyl-o,o'-dimetyl-fenyl-metyl)-imidazolin med formelen 62 g of p-tert.-butyl-o,o'-dimethyl-phenyl-acetonitrile (can be obtained, for example, according to the prescriptions of Buu-Hoi and P. Cagniant, Bull. soc. chim. de France 9, 891 (1942)), 20.6 g of ethylenediamine (96 per cent) and 1.55 ems of sulfur-carbon are heated together in a distilling flask under the exclusion of moisture for 48 hours on a boiling water bath. It avoids ammonia. The reaction product, which solidifies on cooling, is dissolved in benzol, the solution is filtered hot while adding animal charcoal and petroleum ether is added. First, separated impurities are filtered off, and by further addition of petroleum ether, 2-(p-tert.-butyl-o,o'-dimethyl-phenyl-methyl)-imidazoline with the formula
til krystallisasjon. Omkrystallisert fra bensol-petroleter smelter det ved 131—133°. Det kan overføres til sitt hydroklorid som følger: 189 g 2-(p-tert.-butyl-o,o'-dimetyl-fenyl-metyl) -imidazolin oppløses i 400 ems abs. etanol, oppløsningen innstilles sur med 104 ems etanolisk saltsyre (30 pst.'s); filtreres under tilsetning av dyrekull, og tilsettes tørr eddikester og abs. eter inntil det inntrer krystallisasjon. Etter avkjøling suger man fra og omkrystalliserer saltet flere ganger fra abs. etanol under benyt-telse av dyrekull og tilsetning av tørr eddik - ester-eter. Det således erholdte hydroklorid smelter ved 327—329° (under dekompone-ring). to crystallization. Recrystallized from benzol-petroleum ether, it melts at 131-133°. It can be converted to its hydrochloride as follows: 189 g of 2-(p-tert-butyl-o,o'-dimethyl-phenyl-methyl)-imidazoline are dissolved in 400 ems abs. ethanol, the solution is made acidic with 104 ems ethanolic hydrochloric acid (30 percent); filtered while adding animal charcoal, and dry vinegar and abs are added. ether until crystallization occurs. After cooling, the salt is sucked off and recrystallized several times from abs. ethanol using animal charcoal and the addition of dry vinegar - ester ether. The hydrochloride thus obtained melts at 327-329° (during decomposition).
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK138864AA DK104031C (en) | 1964-03-18 | 1964-03-18 | Remote control system for internal combustion engines, in particular ship engines. |
Publications (1)
Publication Number | Publication Date |
---|---|
NO124743B true NO124743B (en) | 1972-05-29 |
Family
ID=8104312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO157259A NO124743B (en) | 1964-03-18 | 1965-03-17 |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE661194A (en) |
DK (1) | DK104031C (en) |
ES (1) | ES309866A1 (en) |
FI (1) | FI41918C (en) |
GB (1) | GB1063584A (en) |
NL (1) | NL142219B (en) |
NO (1) | NO124743B (en) |
-
1964
- 1964-03-18 DK DK138864AA patent/DK104031C/en active
-
1965
- 1965-02-26 ES ES0309866A patent/ES309866A1/en not_active Expired
- 1965-03-02 GB GB8908/65A patent/GB1063584A/en not_active Expired
- 1965-03-16 BE BE661194D patent/BE661194A/xx unknown
- 1965-03-17 NL NL656503388A patent/NL142219B/en unknown
- 1965-03-17 NO NO157259A patent/NO124743B/no unknown
- 1965-03-18 FI FI650666A patent/FI41918C/en active
Also Published As
Publication number | Publication date |
---|---|
ES309866A1 (en) | 1965-06-16 |
FI41918B (en) | 1969-12-01 |
NL142219B (en) | 1974-05-15 |
GB1063584A (en) | 1967-03-30 |
BE661194A (en) | 1965-07-16 |
DK104031C (en) | 1966-03-21 |
FI41918C (en) | 1970-03-10 |
NL6503388A (en) | 1965-09-20 |
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