CH206430A - Process for the preparation of a pyrimidine compound. - Google Patents
Process for the preparation of a pyrimidine compound.Info
- Publication number
- CH206430A CH206430A CH206430DA CH206430A CH 206430 A CH206430 A CH 206430A CH 206430D A CH206430D A CH 206430DA CH 206430 A CH206430 A CH 206430A
- Authority
- CH
- Switzerland
- Prior art keywords
- methyl
- pyrimidine
- amino
- hydrobromide
- preparation
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 6
- -1 pyrimidine compound Chemical class 0.000 title claims description 6
- 238000002360 preparation method Methods 0.000 title claims description 3
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 claims description 8
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 230000002140 halogenating effect Effects 0.000 claims description 4
- NZXPJPYPDFCVTK-UHFFFAOYSA-N 5-(bromomethyl)-2-methylpyrimidin-4-amine;hydrobromide Chemical compound Br.CC1=NC=C(CBr)C(N)=N1 NZXPJPYPDFCVTK-UHFFFAOYSA-N 0.000 claims description 3
- OQLZINXFSUDMHM-UHFFFAOYSA-N Acetamidine Chemical compound CC(N)=N OQLZINXFSUDMHM-UHFFFAOYSA-N 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 2
- VUTBELPREDJDDH-UHFFFAOYSA-N 4-amino-5-hydroxymethyl-2-methylpyrimidine Chemical compound CC1=NC=C(CO)C(N)=N1 VUTBELPREDJDDH-UHFFFAOYSA-N 0.000 claims 1
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- WKSAUQYGYAYLPV-UHFFFAOYSA-N pyrimethamine Chemical compound CCC1=NC(N)=NC(N)=C1C1=CC=C(Cl)C=C1 WKSAUQYGYAYLPV-UHFFFAOYSA-N 0.000 claims 1
- 239000007858 starting material Substances 0.000 claims 1
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 15
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 8
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 229910000027 potassium carbonate Inorganic materials 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- CGIMIKPGESDHPF-UHFFFAOYSA-N 4-chloro-5-(ethoxymethyl)-2-methylpyrimidine Chemical compound CCOCC1=CN=C(C)N=C1Cl CGIMIKPGESDHPF-UHFFFAOYSA-N 0.000 description 1
- QWNONVPLJDGJQR-UHFFFAOYSA-N 5-(bromomethyl)-2-methylpyrimidin-4-amine Chemical compound CC1=NC=C(CBr)C(N)=N1 QWNONVPLJDGJQR-UHFFFAOYSA-N 0.000 description 1
- KEYFHYRXUHGMLW-UHFFFAOYSA-N 5-(ethoxymethyl)-2-methylpyrimidin-4-amine Chemical compound CCOCC1=CN=C(C)N=C1N KEYFHYRXUHGMLW-UHFFFAOYSA-N 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 1
- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- WPUJEWVVTKLMQI-UHFFFAOYSA-N benzene;ethoxyethane Chemical compound CCOCC.C1=CC=CC=C1 WPUJEWVVTKLMQI-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- WCQOBLXWLRDEQA-UHFFFAOYSA-N ethanimidamide;hydrochloride Chemical compound Cl.CC(N)=N WCQOBLXWLRDEQA-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Landscapes
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
Verfahren zur Darstellung einer Pyrimidinverbindung. Gegenstand des Patentes ist ein Verfah ren zur Herstellung einer Pyrimidinverbin- dung, dadurch gekennzeichnet, dass man einen ss-Alkoxy-a-methylenpropionsäureester, dessen Methylengruppe durch eine abspaltbare Sauer stoffgruppe substituiert ist, mit Acetamidin zum 2.Methyl.4.oxy-5-alkoxymethyl.pyrimidin umsetzt,
letzteres durch Einwirken eines ha- logenfierenden Mittels ia das 2-Methyl-4-halo- gen-5-alkoxymethyl-pyrimidin überführt, die ses durch Einwirken von Ammoniak bei er höhter Temperatur zum 2-Methyl-4-amino-5- alkoxymethyl-pyrimidin umsetzt und letzteres mit Bromwasserstoffsäure zum 2-Methyl-4- amino - 5- brommethylpyrimidin -hydrobromid verseift.
Als Propionsäureesterverbindung fin det zweckmässig der ss-Äthoxy-a-formylpro- pionsäureester Verwendung, Phosphoroxychlo- rid dient vorteilhaft als Halogenierungsmittel.
Das so erhältliche 2-Methyl-4-amino-5- brommethylpyrimidin-hydrobromid ist neu. Es bildet Kristalle vom Schmelzpunkt 212 . Es soll als Ausgangsstoff für chemische Synthe sen verwendet werden.
<I>Beispiel:</I> Natrium-a-Formyl-ss-äthoxypropionsäure- äthylester (erhalten aus 1120 g ss-Äthogy- propionsäureester, 600 g Ameisensäureester und 180 g fein verteiltem Natrium in Gegen wart von Äther-Benzol) wird nach Abdampfen des Lösemittels unter vermindertem Druck mit 750 g salzsaurem Acetamidin in 10 Liter Alkohol etwa 6 Stunden unter Rückfluss ge kocht. Das abgeschiedene Natriumchlorid wurde abgesaugt, das klare Filtrat unter ver mindertem Druck weitgehend eingeengt und mit Essigester mehrmals extrahiert.
Die Essig esterlösung wurde zur Trockne eingeengt und der Rückstand mit 500 cmss Phosphoroxy- chlorid 21/z Stunden gekocht. Das unver brauchte Phosphoroxychlorid wurde unter ver mindertem Druck abdestilliert, der Sirupöse Rückstand mit Eiswasser zerlegt und nach dem Alkalischmachen mit Kaliumkarbonat mehrmals mit Methylenchlorid ausgeschüttelt.
Nach dem Trocknen der Methylenchloridlö- sung über Kaliumkarbonat und Abdestillieren des Methylenchlorids wurde der Rückstand unter vermindertem Druck destilliert. Bei 3 mm und 90-951' ging das 2-Methyl-4- chlor-5-äthoxymethylpyrimidin über. Diese Verbindung wurde in der 10fachen Menge starkgesättigter methylalkoholischer Arnmo- niaklösung 10 Stunden auf<B>110"</B> im Auto klaven erhitzt.
Dann wurde das Lösemittel unter vermindertem Druck entfernt, der Rück stand wurde in Wasser aufgenommen, mit Kaliumkarbonat alkalisch gemacht und mit Methylenchlorid extrahiert. Nach dem Trock nen über Kaliumkarbonat und Abdestillieren des Methylenchlorids siedete der Rückstand unter 6 mm Druck bei 142 . Es wurde so das 2-Methyl-4-amino-5-äthoxymethylpyrimi- din erhalten.
Diese Verbindung wurde mit der 20fachen Menge Bromwasserstoffsäure (d 1,7) 2 Stunden auf dem Wasserbad erhitzt, dann wurde die Bromwasserstoffsäure unter vermindertem Druck zum Teil verdampft. Aus dem Rückstand kristallisiert das Hydro- bromid des 2-Methyl-4-amino-5-brornmethyl- pyrimidins aus, das nach wiederholtem Um- kristallisieren aus Bromwasserstoffsäure bei 2121 schmilzt.
Process for the preparation of a pyrimidine compound. The subject of the patent is a process for the production of a pyrimidine compound, characterized in that an s-alkoxy-a-methylenepropionic acid ester, the methylene group of which is substituted by a removable oxygen group, is mixed with acetamidine to form 2.Methyl.4.oxy-5 -alkoxymethyl.pyrimidine converts,
the latter by the action of a halogenating agent generally converts 2-methyl-4-halo-5-alkoxymethyl-pyrimidine, which is converted to 2-methyl-4-amino-5-alkoxymethyl- pyrimidine is reacted and the latter is saponified with hydrobromic acid to give 2-methyl-4-amino-5-bromomethylpyrimidine hydrobromide.
The ß-ethoxy-α-formylpropionic ester is expediently used as the propionic ester compound; phosphorus oxychloride is advantageously used as the halogenating agent.
The 2-methyl-4-amino-5-bromomethylpyrimidine hydrobromide obtainable in this way is new. It forms crystals with a melting point of 212. It is intended to be used as a raw material for chemical synthesis.
<I> Example: </I> Sodium a-formyl-ss-ethoxypropionic acid ethyl ester (obtained from 1120 g ss-ethogypropionic acid ester, 600 g formic acid ester and 180 g finely divided sodium in the presence of ether-benzene) is after Evaporation of the solvent under reduced pressure with 750 g of hydrochloric acid acetamidine in 10 liters of alcohol refluxed for about 6 hours. The precipitated sodium chloride was filtered off with suction, the clear filtrate was largely concentrated under reduced pressure and extracted several times with ethyl acetate.
The ethyl acetate solution was concentrated to dryness and the residue was boiled with 500 cmss of phosphorus oxychloride for 21/2 hours. The unused phosphorus oxychloride was distilled off under reduced pressure, the syrupy residue was broken down with ice water and extracted several times with methylene chloride after making it alkaline with potassium carbonate.
After the methylene chloride solution had been dried over potassium carbonate and the methylene chloride had been distilled off, the residue was distilled under reduced pressure. At 3 mm and 90-951 'the 2-methyl-4-chloro-5-ethoxymethylpyrimidine passed over. This compound was heated in a 10-fold amount of highly saturated methyl alcoholic ammonia solution for 10 hours to <B> 110 "</B> in the car.
The solvent was then removed under reduced pressure, the residue was taken up in water, made alkaline with potassium carbonate and extracted with methylene chloride. After drying over potassium carbonate and distilling off the methylene chloride, the residue boiled at 142 under 6 mm pressure. The 2-methyl-4-amino-5-ethoxymethylpyrimidine was obtained in this way.
This compound was heated on a water bath with 20 times the amount of hydrobromic acid (d 1.7) for 2 hours, then the hydrobromic acid was partially evaporated under reduced pressure. The hydrobromide of 2-methyl-4-amino-5-bromomethylpyrimidine crystallizes out from the residue and melts at 2121 after repeated recrystallization from hydrobromic acid.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE206430X | 1936-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH206430A true CH206430A (en) | 1939-08-15 |
Family
ID=5792473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH206430D CH206430A (en) | 1936-03-31 | 1937-03-18 | Process for the preparation of a pyrimidine compound. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH206430A (en) |
-
1937
- 1937-03-18 CH CH206430D patent/CH206430A/en unknown
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