GB971752A - Phenyl-alkylamines,their manufacture and use - Google Patents

Phenyl-alkylamines,their manufacture and use

Info

Publication number
GB971752A
GB971752A GB9080/61A GB908061A GB971752A GB 971752 A GB971752 A GB 971752A GB 9080/61 A GB9080/61 A GB 9080/61A GB 908061 A GB908061 A GB 908061A GB 971752 A GB971752 A GB 971752A
Authority
GB
United Kingdom
Prior art keywords
appropriate
benzyl
reacting
reducing
phenyl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB9080/61A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of GB971752A publication Critical patent/GB971752A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/68Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/13Amines
    • A61K31/135Amines having aromatic rings, e.g. ketamine, nortriptyline
    • A61K31/137Arylalkylamines, e.g. amphetamine, epinephrine, salbutamol, ephedrine or methadone

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Medicinal Chemistry (AREA)
  • Emergency Medicine (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention comprises phenylalkylamines of the formula <FORM:0971752/C1/1> and physiologically tolerable acid addition salts thereof, wherein OR1 is a hydroxy, methoxy, ethoxy or benzyloxy group, R2 is an alkyl group of 1-4 carbon atoms and R3 and R4 are alkyl groups of 1-4 carbon atoms or, together with the adjacent central carbon atom, represent a saturated acyclic ring system of 5 or 6 carbon atoms. The compounds are prepared by (a) reducing a corresponding primary b -phenylalkylamine in the presence of a ketone of the formula R3-CO-R5 wherein R5 may be an alkyl or an alkenyl group of 1-4 carbon atoms; (b) reacting the appropriate primary b -phenylalkylamine with an ester R3(R4)-CH-X, wherein X is an inorganic or organic acid radical, if desired in the presence of an acid-binding agent; (c) heating the appropriate primary b -phenyl-alkylamine with an alcohol of the formula R3(R4)-CHOH in the presence of Raney nickel; (d) reacting an appropriate b -phenylalkanol with an amine R3(R4)CHNH2; (e) reacting an appropriate b -phenylalkyl halide with an amine R3(R4)-CH-NHR6 wherein R6 is hydrogen or a benzyl group which is subsequently split off by hydrogenation; (f) reducing an appropriate a -phenylaldehyde in the presence of an amine R3(R4)CH-NH2 or (g) reducing the appropriate a -phenylalkanoyl-N-alkylamide with LiAlH4. If the group OR1 in the products is a methoxy, ethoxy or benzyloxy group, it may be treated by known methods for the cleavage of such ethers to give the corresponding hydroxy compound or conversely a hydroxyl group may be etherified to give the methoxy or ethoxy compounds. Primary 2-phenyl-2-alkyl-butylamines used as starting materials are prepared by reducing the corresponding (hydroxy-methoxy-, ethoxy- or benzyloxy-) phenyl-a -ethyl-a -alkyl-acetonitriles, obtainable by heating the corresponding benzyl cyanide with the appropriate alkyl halides in the presence of sodamide. Starting materials bearing a p-hydroxy-substituent may be made via the unsubstituted benzyl cyanide, e.g. 2-(41-hydroxy-phenyl)-2-ethyl-butylamine is made by treating benzyl cyanide with ethyl bromide in the presence of sodamide, nitrating the resulting phenyldiethyl-acetonitrile to 4-nitrophenyl-diethyl-acetonitrile, reducing to 4-aminophenyl-diethyl-acetonitrile, diazotizing and boiling to 4-hydroxyphenyl-diethyl-acetonitrile and hydrogenating. Phenylalkyl halides of the formula R1O-C6H4C(R2)(C2H5) -CH2-Hal are made by reducing phenyl-dialkyl-acetic acids to the carbinols with LiAlH4 and halogenating e.g. with HBr. 3-Ethoxy-benzyl-cyanide is made by etherifying 3-hydroxybenzyl alcohol with diethyl sulphate, reacting the resulting 3-ethoxybenzyl alcohol with HBr to give the bromide and treating with potassium cyanide. 3-Benzyloxy-benzyl-cyanide is made by reacting 3-hydroxybenzyl alcohol with benzyl bromide, reacting the resulting 3-benzyloxybenzyl alcohol with HBr to give 3-benzyloxybenzyl bromide and treating with potassium cyanide. Pharmaceutical preparations having analgesic activity comprise the above compounds of the invention in admixture or conjunction with a pharmaceutical carrier. The preparations preferably take the form of tablets or dragees for oral administration. The active compounds may be used in the form of their addition salts with organic and inorganic acids such as hydrohalic, phosphoric, sulphamic, mono- and di-carboxylic acids and citric, aceturic, aspartic, p-aminobenzoic, salicylic and ethylenediamine-tetracetic acids.
GB9080/61A 1960-03-11 1961-03-13 Phenyl-alkylamines,their manufacture and use Expired GB971752A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1960F0030735 DE1242240C2 (en) 1960-03-11 1960-03-11 Process for the preparation of phenylalkylamines and their acid addition salts

Publications (1)

Publication Number Publication Date
GB971752A true GB971752A (en) 1964-10-07

Family

ID=7093891

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9080/61A Expired GB971752A (en) 1960-03-11 1961-03-13 Phenyl-alkylamines,their manufacture and use

Country Status (4)

Country Link
US (1) US3188349A (en)
DE (1) DE1242240C2 (en)
GB (1) GB971752A (en)
NL (1) NL262294A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3422141A (en) * 1962-01-17 1969-01-14 Haessle Ab 3,4-dihydroxyphenylalkanamides
US3422140A (en) * 1962-01-17 1969-01-14 Haessle Ab 2,3-dihydroxyphenylalkanamides

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2251245A (en) * 1938-10-01 1941-07-29 Gen Aniline & Film Corp Production of hydroxy alkyl amines
DE904536C (en) * 1942-11-29 1954-02-18 Troponwerke Dinklage & Co Process for the preparation of 1- (oxyphenyl) -2-aminobutanes with an analgesic effect
NL64412C (en) * 1943-08-18
US2793977A (en) * 1951-08-31 1957-05-28 Caspe Saul Compositions and method for reducing blood sugar concentration
US2742397A (en) * 1953-06-09 1956-04-17 Commercial Solvents Corp Analgetic compositions of n-(1-methyl propyl) cyclohexylamine
US2884455A (en) * 1956-10-29 1959-04-28 Dow Chemical Co Propynyl phenylethylamines and their halogen acid salts

Also Published As

Publication number Publication date
DE1242240B (en) 1967-06-15
NL262294A (en)
US3188349A (en) 1965-06-08
DE1242240C2 (en) 1967-12-07

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