CH370407A - Process for the preparation of new heterocyclic hydrazine derivatives - Google Patents
Process for the preparation of new heterocyclic hydrazine derivativesInfo
- Publication number
- CH370407A CH370407A CH5747558A CH5747558A CH370407A CH 370407 A CH370407 A CH 370407A CH 5747558 A CH5747558 A CH 5747558A CH 5747558 A CH5747558 A CH 5747558A CH 370407 A CH370407 A CH 370407A
- Authority
- CH
- Switzerland
- Prior art keywords
- hydrazine
- picolinoyl
- acid
- preparation
- nicotinoyl
- Prior art date
Links
- -1 heterocyclic hydrazine derivatives Chemical class 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 9
- 238000002360 preparation method Methods 0.000 title claims description 4
- OAKJQQAXSVQMHS-UHFFFAOYSA-N hydrazine Substances NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 8
- MUMZUERVLWJKNR-UHFFFAOYSA-N oxoplatinum Chemical compound [Pt]=O MUMZUERVLWJKNR-UHFFFAOYSA-N 0.000 claims description 7
- 229910003446 platinum oxide Inorganic materials 0.000 claims description 7
- 238000005984 hydrogenation reaction Methods 0.000 claims description 6
- KFUSANSHCADHNJ-UHFFFAOYSA-N pyridine-3-carbohydrazide Chemical compound NNC(=O)C1=CC=CN=C1 KFUSANSHCADHNJ-UHFFFAOYSA-N 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 claims description 4
- 150000007857 hydrazones Chemical class 0.000 claims description 4
- UKVIEHSSVKSQBA-UHFFFAOYSA-N methane;palladium Chemical compound C.[Pd] UKVIEHSSVKSQBA-UHFFFAOYSA-N 0.000 claims description 3
- DUCNKBZIKNAQOS-UHFFFAOYSA-N O=[C]C1=CC=CN=C1 Chemical compound O=[C]C1=CC=CN=C1 DUCNKBZIKNAQOS-UHFFFAOYSA-N 0.000 claims description 2
- 150000003934 aromatic aldehydes Chemical class 0.000 claims description 2
- 150000002576 ketones Chemical class 0.000 claims description 2
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 claims description 2
- BSKHPKMHTQYZBB-UHFFFAOYSA-N 2-methylpyridine Chemical compound CC1=CC=CC=N1 BSKHPKMHTQYZBB-UHFFFAOYSA-N 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 24
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 15
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 10
- 239000003054 catalyst Substances 0.000 description 7
- MAUBFEHMBSQXMM-UHFFFAOYSA-N n'-benzylpyridine-2-carbohydrazide Chemical compound C=1C=CC=NC=1C(=O)NNCC1=CC=CC=C1 MAUBFEHMBSQXMM-UHFFFAOYSA-N 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 150000002429 hydrazines Chemical class 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 239000000706 filtrate Substances 0.000 description 5
- 239000000155 melt Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 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
- 238000001953 recrystallisation Methods 0.000 description 3
- 125000000590 4-methylphenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])[H] 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 150000007513 acids Chemical class 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 229940093915 gynecological organic acid Drugs 0.000 description 2
- 239000012442 inert solvent Substances 0.000 description 2
- VKHPPPQEBGYWOR-UHFFFAOYSA-N n-(benzylideneamino)pyridine-2-carboxamide Chemical compound C=1C=CC=NC=1C(=O)NN=CC1=CC=CC=C1 VKHPPPQEBGYWOR-UHFFFAOYSA-N 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- BAQLNPIEFOYKNB-UHFFFAOYSA-N pyridine-2-carbohydrazide Chemical compound NNC(=O)C1=CC=CC=N1 BAQLNPIEFOYKNB-UHFFFAOYSA-N 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- 235000002906 tartaric acid Nutrition 0.000 description 2
- 239000011975 tartaric acid Substances 0.000 description 2
- QBYIENPQHBMVBV-HFEGYEGKSA-N (2R)-2-hydroxy-2-phenylacetic acid Chemical compound O[C@@H](C(O)=O)c1ccccc1.O[C@@H](C(O)=O)c1ccccc1 QBYIENPQHBMVBV-HFEGYEGKSA-N 0.000 description 1
- MIOPJNTWMNEORI-GMSGAONNSA-N (S)-camphorsulfonic acid Chemical compound C1C[C@@]2(CS(O)(=O)=O)C(=O)C[C@@H]1C2(C)C MIOPJNTWMNEORI-GMSGAONNSA-N 0.000 description 1
- DBNWBEGCONIRGQ-UHFFFAOYSA-N 1,1-diphenylpropan-2-one Chemical compound C=1C=CC=CC=1C(C(=O)C)C1=CC=CC=C1 DBNWBEGCONIRGQ-UHFFFAOYSA-N 0.000 description 1
- NOXKUHSBIXPZBJ-UHFFFAOYSA-N 1-(4-methylphenyl)propan-2-one Chemical compound CC(=O)CC1=CC=C(C)C=C1 NOXKUHSBIXPZBJ-UHFFFAOYSA-N 0.000 description 1
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 1
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Natural products OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- YEFQQYQCZGBYTP-UHFFFAOYSA-N C(=O)(O)C(O)C(O)C(=O)O.N1=C(C=CC=C1)C(=O)NNCC1=CC=CC=C1 Chemical compound C(=O)(O)C(O)C(O)C(=O)O.N1=C(C=CC=C1)C(=O)NNCC1=CC=CC=C1 YEFQQYQCZGBYTP-UHFFFAOYSA-N 0.000 description 1
- ZXVUSJARFUEZOH-UHFFFAOYSA-N C(C1=CN=CC=C1)(=O)NNCC1=CC=CC=C1 Chemical compound C(C1=CN=CC=C1)(=O)NNCC1=CC=CC=C1 ZXVUSJARFUEZOH-UHFFFAOYSA-N 0.000 description 1
- 206010006895 Cachexia Diseases 0.000 description 1
- LKMLUIBOCXKADF-UHFFFAOYSA-N Cl.N1=C(C=CC=C1)C(=O)NNCC1=CC=CC=C1 Chemical compound Cl.N1=C(C=CC=C1)C(=O)NNCC1=CC=CC=C1 LKMLUIBOCXKADF-UHFFFAOYSA-N 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
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 1
- 102000010909 Monoamine Oxidase Human genes 0.000 description 1
- 108010062431 Monoamine oxidase Proteins 0.000 description 1
- LEOCPUDHOSXYJG-UHFFFAOYSA-N N'-benzhydrylpyridine-3-carbohydrazide Chemical compound C(C1=CN=CC=C1)(=O)NNC(C1=CC=CC=C1)C1=CC=CC=C1 LEOCPUDHOSXYJG-UHFFFAOYSA-N 0.000 description 1
- DUXDFHSXGBULKE-UHFFFAOYSA-N N'-benzylpyridine-2-carbohydrazide hydrobromide Chemical compound Br.N1=C(C=CC=C1)C(=O)NNCC1=CC=CC=C1 DUXDFHSXGBULKE-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- IWYDHOAUDWTVEP-UHFFFAOYSA-N R-2-phenyl-2-hydroxyacetic acid Natural products OC(=O)C(O)C1=CC=CC=C1 IWYDHOAUDWTVEP-UHFFFAOYSA-N 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 230000001430 anti-depressive effect Effects 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 235000010323 ascorbic acid Nutrition 0.000 description 1
- 239000011668 ascorbic acid Substances 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 150000001728 carbonyl compounds Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- IQFVPQOLBLOTPF-HKXUKFGYSA-L congo red Chemical compound [Na+].[Na+].C1=CC=CC2=C(N)C(/N=N/C3=CC=C(C=C3)C3=CC=C(C=C3)/N=N/C3=C(C4=CC=CC=C4C(=C3)S([O-])(=O)=O)N)=CC(S([O-])(=O)=O)=C21 IQFVPQOLBLOTPF-HKXUKFGYSA-L 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 125000005982 diphenylmethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 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
- PSLIMVZEAPALCD-UHFFFAOYSA-N ethanol;ethoxyethane Chemical compound CCO.CCOCC PSLIMVZEAPALCD-UHFFFAOYSA-N 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 150000003840 hydrochlorides Chemical class 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 229940071870 hydroiodic acid Drugs 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000000654 isopropylidene group Chemical group C(C)(C)=* 0.000 description 1
- TYQCGQRIZGCHNB-JLAZNSOCSA-N l-ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(O)=C(O)C1=O TYQCGQRIZGCHNB-JLAZNSOCSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 229940098895 maleic acid Drugs 0.000 description 1
- 229960002510 mandelic acid Drugs 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- LYWOLLFRTPZXFK-UHFFFAOYSA-N n-(benzhydrylideneamino)pyridine-3-carboxamide Chemical compound C=1C=CN=CC=1C(=O)NN=C(C=1C=CC=CC=1)C1=CC=CC=C1 LYWOLLFRTPZXFK-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 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
- 239000003208 petroleum Substances 0.000 description 1
- QCCDLTOVEPVEJK-UHFFFAOYSA-N phenylacetone Chemical compound CC(=O)CC1=CC=CC=C1 QCCDLTOVEPVEJK-UHFFFAOYSA-N 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/81—Amides; Imides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
Description
Verfahren zur Herstellung von neuen heterocyclischen Hydrazinderivaten Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von neuen heterocyclischen Hydrazin- derivaten der Formel:
Rl-NH-NH-R2 , worin R1 den Picolinoyl- oder den Nicotinoylrest und R2 einen Aralkylrest bedeuten, das dadurch gekenn zeichnet ist, dass man Picolin- oder Nicotinsäure- hydrazid mit einem aromatischen Aldehyd oder Keton umsetzt und das gebildete Hydrazon durch Hydrierung in die Hydrazinverbindung überführt.
Der in der obigen Formel verwendete Rest R., bezieht sich insbesondere auf mono- und diaryl- substituierte Alkylreste, wie z. B. Benzyl, Tolyliso- propyl, Phenylisopropyl, Diphenylmethyl usw.
Die Hydrierung der Hydrazone der Carbonyl- verbindungen kann gleichzeitig mit der Umsetzung oder nachfolgend vorgenommen werden, zweck mässig in Gegenwart von Katalysatoren, wie z. B. Platinoxyd, Pailadiumkohle usw. und vorzugsweise in einem inerten Lösungsmittel.
Nach dem erfindungsgemässen Verfahren können beispielsweise folgende Derivate gewonnen werden: 1-Nicotinoyl-2 benzyl-hydrazin, 1-Nicotinoyl-2-(2-phenyl-isopropyl)-hydrazin, 1-Nicotinoyl-2-diphenyhnethyl-hydrazin, 1-Picolinoyl-2-benzyl-hydrazin, 1-Picolinoyl-2-(2-phenyl-isopropyl)-hydrazin,
1-Picolinoyl-2-diphenyhnethyl-hydrazin. Die erfindungsgemäss erhältlichen heterocycli- schen Hydrazinderivate bilden wohldefinierte Salze sowohl mit anorganischen wie mit organischen Säu ren, z.
B. mit Halogenwasserstoffsäuren, wie Chlor- wasserstoffsäure, Bromwasserstoffsäure, Jodwasser- stoffsäure, mit andern Mineralsäuren, wie Schwefel säure, Phosphorsäure, Salpetersäure, und mit orga- nischen Säuren, wie Weinsäure, Citronensäure, Camphersulfosäure, Äthansulfosäure, Salicylsäure, Ascorbinsäure, Maleinsäure, Mandelsäure usw.
Be vorzugte Salze sind die Hydrohalogenide, insbeson dere die Hydrochloride. Die Säureadditionssalze wer den vorzugsweise in einem inerten Lösungsmittel durch Behandlung des Hydrazinderivates mit einem Überschuss der entsprechenden Säure hergestellt.
Die erfindungsgemässen Verfahrensprodukte und deren Salze hemmen die Monoaminoxydase; einzelne Vertreter zeichnen sich durch ihre ausgeprägte anti depressive Wirksamkeit aus und wirken bei Kachexie gewichtssteigernd. Sie stellen damit eine wertvolle Bereicherung des Arzneimittelschatzes dar.
<I>Beispiel 1</I> 14 g Nicotinsäurehydrazid und 14 g p-Methyl- phenylaceton werden während 4 Stunden in Benzol am Rückfluss gekocht. Nach dem Abkühlen wird das auskristallisierte 1-Nicotinoyl-2-[2-(p-methyl-phenyl)- isopropyliden]-hydrazin abgetrennt und aus Benzol umkristallisiert; Schmelzpunkt 108-110 C.
5 g des so erhaltenen Hydrazinderivates werden in 180 cm3 Alkohol gelöst und unter Zusatz von 0,2 g Platinoxyd und bei einem Druck von etwa 35 Atmosphären bis zur Aufnahme der berechneten Menge Wasserstoff hydriert. Der Katalysator wird anschliessend filtriert und das Filtrat zur Trockne eingedampft.
Der Rückstand wird aus Methanol um kristallisiert, wobei reines 1- Nicotinoyl - 2 - [2 - (p methyl-phenyl)-isopropyl]-hydrazin vom Schmelz- punkt l46 C erhalten wird.
<I>Beispiel 2</I> 14 g Nicotinsäurehydrazid und 30 g Phenyl- aceton werden während 15 Stunden in 200 cm3 Benzol am Rückfluss erhitzt. Nach dem Abkühlen wird das auskristallisierte 1-Nicotinoyl-2-(2-phenyl- isopropyliden)-hydrazin abgetrennt; Schmelzpunkt 123-124 C.
24 g dieses Hydrazinderivates werden in 200 cm: Alkohol gelöst und unter Zusatz von 0,2 g Platin oxyd und bei einem Druck von etwa 35 Atmosphären bis zur Aufnahme der berechneten Menge Wasser stoff hydriert. Der Katalysator wird abfiltriert, das Filtrat zu einem viskosen Öl eingeengt und letzteres wieder in 60 cm3 Alkohol gelöst.
Die erhaltene Lö sung wird bis zu einer deutlich sauren Reaktion ge genüber Kongorotpapier mit alkoholischer Salzsäure versetzt und mit ungefähr dem gleichen Volumen Aceton verdünnt. In der Kälte scheidet sich langsam 1- Nicotinoyl - 2 - (2-phenyl-isopropyl)-hydrazin aus, welches nach dem Umkristallisieren aus Alkohol/ Aceton bei 220 C schmilzt.
<I>Beispiel 3</I> 14 g Nicotinsäurehydrazid und 20 g Benzophenon werden in 200 cm3 Xylen während 20 Stunden am Rückfluss erhitzt. Nach dem Abkühlen wird das filtrierte Reaktionsgemisch zu einem viskosen Öl ein geengt, in Alkohol gelöst und mit Petroläther ver dünnt.
Beim Stehenlassen der erhaltenen Lösung scheidet sich 1- Nicotinoyl - 2 - diphenylmethylen- hydrazin vom Schmelzpunkt 97-99 C ab.
10 g dieses Hydrazinderivates werden in 180 ein- Alkohol gelöst und unter Zusatz von 0,2 g Platin oxyd bei einem Druck von etwa 35 Atmosphären bei 40 C bis zur Aufnahme der berechneten Menge Wasserstoff hydriert. Der Katalysator wird anschlie ssend abfiltriert und das Filtrat zur Trockne einge dampft. Nach der Umkristallisation aus Benzol schmilzt das erhaltene 1-Nicotinoyl-2-diphenyl- methyl-hydrazin bei l13-115 C.
<I>Beispiel 4</I> 14 g Nicotinsäurehydrazid und 22 g 1,1-Diphenyl- aceton werden in 400 em3 Benzol und 1 cm3 Eis essig während 7 Stunden am Rückfluss erhitzt. Beim Abkühlen scheidet sich 1-Nicotinoyl-2-(2,2-diphenyl- isopropyliden)-hydrazin ab, welches nach dem Um kristallisieren aus Alkohol bei 182 C schmilzt.
10 g dieses Hydrazinderivates werden in 180 em3 Alkohol gelöst und bei 30-40 C unter Zusatz von 0,2 g Platinoxyd bei einem Druck von etwa 25-35 Atmosphären bis zur Aufnahme der berechneten Menge Wasserstoff hydriert. Der Katalysator wird abfiltriert und das Filtrat eingedampft. Der Rück stand wird aus Alkohol umkristallisiert.
<I>Beispiel 5</I> 1000 g Picolinsäurehydrazid und 750 g Benzalde- hyd werden in 4000 cm3 Alkohol während 15 Mi nuten zum Sieden gebracht. Das beim Abkühlen sich ausscheidende 1- Picolinoyl - 2 - benzylidenhydrazin schmilzt nach dem Umkristallisieren aus Alkohol bei 192-194 C. 22,5 g dieses Hydrazins werden in 175 cm3 Äthanol gelöst und unter Zusatz von 0,2 g Platin oxyd bei einem Druck von 3-4 Atmosphären vor erst bei 70 C und nach dem Anlaufen der Reak tion bei 25 C hydriert.
Nach Aufnahme der berech neten Menge Wasserstoff wird der Katalysator ent fernt und das erhaltene 1-Picolinoyl-2-benzylhydrazin aus Äthanol umkristallisiert; Schmelzpunkt 87-88 C. <I>Beispiel 6</I> 942 g des gemäss Beispiel 5 erhaltenen 1-Picolin- oyl-2-benzyliden-hydrazins werden in 5000 cm3 Äthanol gelöst und unter Zusatz von 150 g 10%iger
Palladiumkohle unter einem Druck von 35 Atmo sphären bei 25 C hydriert. Die Temperatur steigt auf 50 C während der Reaktion. Man hydriert weiter, bis Wasserstoff in einem überschuss von 20% aufgenommen worden ist.
Nach Beendigung der Hydrierung wird der Kata lysator abfiltriert und die verbleibende Mutterlauge auf 2000 cm3 eingeengt. Das Hydrierungsprodukt kristallisiert beim Abkühlen teilweise aus und wird abfiltriert. Aus dem eingeengten Filtrat kann wei teres Material gewonnen werden. Die vereinigten Produkte werden in 1800 cm3 siedendem Alkohol umkristallisiert. Man erhält dabei 1-Picolinoyl-2- benzylhydrazin als farblose Kristalle vom Schmelz punkt 87-88 C.
Die Salze dieser Verbindung können wie folgt hergestellt werden: 3 g 1 - Picolinoyl - 2 - benzylhydrazin werden in 10 cm3 äthanolischem Hydrobromid gelöst. Beim Zusetzen von Äther kristallisiert 1-Picolinoyl-2- benzylhydrazin-hydrobromid aus, welches nach Um lösen aus ÄthanolÄther bei 163-164 C schmilzt.
3 g 1 - Picolinoyl - 2 - benzylhydrazin werden zu 100 cm3 Äthanol und 5 cm-' 85%iger Phosphor- säure gegeben. Beim Zusetzen von Äther scheidet sich 1 - Picolinoyl - 2 - benzylhydrazin - phosphat als sirupöses Produkt ab, welches nicht kristallisiert.
3 g 1 - Picolinoyl - 2 - benzylhydrazin werden zu 100 cm3 Äthanol und 5 cm3 Weinsäure gegeben. Beim Zusetzen von Äther scheidet sich 1-Picolinoyl- 2-benzylhydrazin-tartrat als amorphes Produkt ab, welches nicht kristallisiert.
Zu 10 g 1-Picolinoyl-2-benzylhydrazin in Äthanol werden 10 cm3 20%ige äthanolische Salzsäure ge- geben. Beim Zusetzen von Äther kristallisiert 1-Pico- linoyl-2-benzylhydrazin-hydrochlorid aus.
Process for the preparation of new heterocyclic hydrazine derivatives The present invention relates to a process for the preparation of new heterocyclic hydrazine derivatives of the formula:
Rl-NH-NH-R2, where R1 is the picolinoyl or nicotinoyl radical and R2 is an aralkyl radical, which is characterized in that picolinic or nicotinic acid hydrazide is reacted with an aromatic aldehyde or ketone and the hydrazone formed is converted into by hydrogenation the hydrazine compound transferred.
The radical R. used in the above formula relates in particular to mono- and diaryl-substituted alkyl radicals, such as. B. benzyl, tolylisopropyl, phenylisopropyl, diphenylmethyl etc.
The hydrogenation of the hydrazones of the carbonyl compounds can be carried out simultaneously with the reaction or subsequently, advantageously in the presence of catalysts, such as. B. platinum oxide, palladium carbon, etc. and preferably in an inert solvent.
The following derivatives, for example, can be obtained by the process according to the invention: 1-nicotinoyl-2-benzylhydrazine, 1-nicotinoyl-2- (2-phenyl-isopropyl) -hydrazine, 1-nicotinoyl-2-diphenyhnethylhydrazine, 1-picolinoyl- 2-benzyl-hydrazine, 1-picolinoyl-2- (2-phenyl-isopropyl) -hydrazine,
1-picolinoyl-2-diphenylethylhydrazine. The heterocyclic hydrazine derivatives obtainable according to the invention form well-defined salts with both inorganic and organic acids, e.g.
B. with hydrohalic acids such as hydrochloric acid, hydrobromic acid, hydroiodic acid, with other mineral acids such as sulfuric acid, phosphoric acid, nitric acid, and with organic acids such as tartaric acid, citric acid, camphorsulfonic acid, ethanesulfonic acid, salicylic acid, ascorbic acid, maleic acid, Mandelic acid, etc.
Preferred salts are the hydrohalides, in particular the hydrochlorides. The acid addition salts are preferably prepared in an inert solvent by treating the hydrazine derivative with an excess of the corresponding acid.
The products of the process according to the invention and their salts inhibit monoamine oxidase; individual representatives are characterized by their pronounced anti-depressive effectiveness and have a weight-increasing effect in cachexia. They thus represent a valuable addition to the medicinal treasure trove.
<I> Example 1 </I> 14 g of nicotinic acid hydrazide and 14 g of p-methylphenylacetone are refluxed in benzene for 4 hours. After cooling, the 1-nicotinoyl-2- [2- (p-methyl-phenyl) isopropylidene] hydrazine which has crystallized out is separated off and recrystallized from benzene; Melting point 108-110 C.
5 g of the hydrazine derivative obtained in this way are dissolved in 180 cm 3 of alcohol and, with the addition of 0.2 g of platinum oxide and at a pressure of about 35 atmospheres, hydrogenated until the calculated amount of hydrogen is absorbed. The catalyst is then filtered and the filtrate is evaporated to dryness.
The residue is recrystallized from methanol, whereby pure 1-nicotinoyl - 2 - [2 - (p methylphenyl) isopropyl] hydrazine with a melting point of 146 ° C. is obtained.
<I> Example 2 </I> 14 g of nicotinic acid hydrazide and 30 g of phenylacetone are refluxed in 200 cm3 of benzene for 15 hours. After cooling, the 1-nicotinoyl-2- (2-phenyl-isopropylidene) hydrazine which has crystallized out is separated off; Melting point 123-124 C.
24 g of this hydrazine derivative are dissolved in 200 cm: alcohol and hydrogenated with the addition of 0.2 g of platinum oxide and at a pressure of about 35 atmospheres until the calculated amount of hydrogen is absorbed. The catalyst is filtered off, the filtrate is concentrated to a viscous oil and the latter is redissolved in 60 cm3 of alcohol.
The solution obtained is mixed with alcoholic hydrochloric acid until a clearly acidic reaction compared to Congo red paper and diluted with approximately the same volume of acetone. In the cold, 1- nicotinoyl - 2 - (2-phenyl-isopropyl) -hydrazine slowly separates out, which melts at 220 ° C. after recrystallization from alcohol / acetone.
<I> Example 3 </I> 14 g of nicotinic acid hydrazide and 20 g of benzophenone are refluxed in 200 cm3 of xylene for 20 hours. After cooling, the filtered reaction mixture is concentrated to a viscous oil, dissolved in alcohol and diluted ver with petroleum ether.
When the solution obtained is left to stand, 1-nicotinoyl-2-diphenylmethylene hydrazine with a melting point of 97-99 ° C. separates out.
10 g of this hydrazine derivative are dissolved in 180% alcohol and, with the addition of 0.2 g of platinum oxide, hydrogenated at a pressure of about 35 atmospheres at 40 ° C. until the calculated amount of hydrogen is absorbed. The catalyst is then filtered off and the filtrate is evaporated to dryness. After recrystallization from benzene, the 1-nicotinoyl-2-diphenylmethylhydrazine obtained melts at 113-115 C.
<I> Example 4 </I> 14 g of nicotinic acid hydrazide and 22 g of 1,1-diphenyl acetone are refluxed in 400 cubic meters of benzene and 1 cm3 of glacial acetic acid for 7 hours. On cooling, 1-nicotinoyl-2- (2,2-diphenyl-isopropylidene) -hydrazine separates, which melts at 182 ° C. after crystallizing from alcohol.
10 g of this hydrazine derivative are dissolved in 180 cubic meters of alcohol and hydrogenated at 30-40 C with the addition of 0.2 g of platinum oxide at a pressure of about 25-35 atmospheres until the calculated amount of hydrogen is absorbed. The catalyst is filtered off and the filtrate is evaporated. The residue is recrystallized from alcohol.
<I> Example 5 </I> 1000 g of picolinic hydrazide and 750 g of benzaldehyde are brought to the boil in 4000 cm3 of alcohol for 15 minutes. The 1-picolinoyl-2-benzylidene hydrazine which separates out on cooling melts after recrystallization from alcohol at 192-194 ° C. 22.5 g of this hydrazine are dissolved in 175 cm3 of ethanol and, with the addition of 0.2 g of platinum oxide, at a pressure of 3-4 atmospheres before hydrogenated at 70 C and after the start of the reaction at 25 C.
After the calculated amount of hydrogen has been taken up, the catalyst is removed and the 1-picolinoyl-2-benzylhydrazine obtained is recrystallized from ethanol; Melting point 87-88 ° C. Example 6 942 g of the 1-picolinoyl-2-benzylidene hydrazine obtained according to Example 5 are dissolved in 5000 cm3 of ethanol and 150 g of 10% strength are added
Palladium carbon under a pressure of 35 atmospheres at 25 C hydrogenated. The temperature rises to 50 ° C. during the reaction. Hydrogenation is continued until hydrogen has been taken up in an excess of 20%.
After the hydrogenation has ended, the catalyst is filtered off and the remaining mother liquor is concentrated to 2000 cm3. The hydrogenation product partially crystallizes out on cooling and is filtered off. Further material can be obtained from the concentrated filtrate. The combined products are recrystallized from 1800 cm3 of boiling alcohol. This gives 1-picolinoyl-2-benzylhydrazine as colorless crystals with a melting point of 87-88 C.
The salts of this compound can be prepared as follows: 3 g of 1 - picolinoyl - 2 - benzylhydrazine are dissolved in 10 cm3 of ethanolic hydrobromide. When ether is added, 1-picolinoyl-2-benzylhydrazine hydrobromide crystallizes out, which melts at 163-164 ° C after dissolving from ethanol-ether.
3 g of 1-picolinoyl-2-benzylhydrazine are added to 100 cm3 of ethanol and 5 cm- 'of 85% phosphoric acid. When adding ether, 1 - picolinoyl - 2 - benzylhydrazine phosphate separates out as a syrupy product which does not crystallize.
3 g of 1 - picolinoyl - 2 - benzylhydrazine are added to 100 cm3 of ethanol and 5 cm3 of tartaric acid. When ether is added, 1-picolinoyl-2-benzylhydrazine tartrate separates out as an amorphous product which does not crystallize.
10 cm 3 of 20% ethanolic hydrochloric acid are added to 10 g of 1-picolinoyl-2-benzylhydrazine in ethanol. When ether is added, 1-picolinoyl-2-benzylhydrazine hydrochloride crystallizes out.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US65083457A | 1957-04-05 | 1957-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH370407A true CH370407A (en) | 1963-07-15 |
Family
ID=24610506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH5747558A CH370407A (en) | 1957-04-05 | 1958-03-25 | Process for the preparation of new heterocyclic hydrazine derivatives |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH370407A (en) |
-
1958
- 1958-03-25 CH CH5747558A patent/CH370407A/en unknown
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