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
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NO
Norway
Prior art keywords
ethylenediamine
tert
butyl
dimethyl
phenyl
Prior art date
Application number
NO157259A
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Norwegian (no)
Inventor
A Oestergaard
Original Assignee
Burmeister & Wains Mot Mask
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Publication date
Application filed by Burmeister & Wains Mot Mask filed Critical Burmeister & Wains Mot Mask
Publication of NO124743B publication Critical patent/NO124743B/no

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H21/00Use of propulsion power plant or units on vessels
    • B63H21/22Use 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations

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  • 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)

1. Fremgangsmåte til fremstilling av 2-(p-tert.-butyl-o,o'-dimetyl-fenyl-metyl)-imidazolin med formelen1. Process for the preparation of 2-(p-tert.-butyl-o,o'-dimethyl-phenyl-methyl)-imidazoline with the formula eller dets salter, karakterisert ved at man omsetter 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 og av den frie base eventuelt fremstiller salter eller over-fører erholdte salter til den frie base. or its salts, characterized by reacting p-tert.-butyl-o,o'-dimethyl-phenyl-acetic acid or one of its functional acid derivatives with ethylenediamine or with a compound which can be transferred to ethylenediamine by reaction with ammonia or with a reactive N-derivative of ethylenediamine during direct or stepwise formation of the imidazoline ring and of the free base optionally produces salts or transfers obtained salts to the free base. 2. Fremgangsmåte ifølge påstand 1, karakterisert ved at utgangsstoffene oppstår under reaksjonsbetingelsene. 2. Method according to claim 1, characterized in that the starting substances occur under the reaction conditions. 3. Fremgangsmåte ifølge påstandene 1—2, karakterisert ved at man omsetter p-tert,-butyl-o,o'-dimetyl-fenyl-acetonitril i nærvær av svovelvannstoff eller midler som danner dette med etylendiamin.3. Process according to claims 1-2, characterized in that one reacts p-tert,-butyl-o,o'-dimethyl-phenyl-acetonitrile in the presence of hydrogen sulphide or agents which form this with ethylenediamine.
NO157259A 1964-03-18 1965-03-17 NO124743B (en)

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

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ID=8104312

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (7)

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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)

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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