Hydrochloric Acid → 4-(3-ethoxy-4-hydroxy-5-nitrophenyl)-5-(3-methoxyphenyl)-6-phenyl-3,4-dihydropyrimidin-2(1H)-one

HRID 924791

Reaktionsgleichung

Reaktionsgleichung von HRID 924791
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH2:9][C:10]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)=O)[CH:6]=[CH:7][CH:8]=1.[CH2:18]([O:20][C:21]1[CH:22]=[C:23]([CH:26]=[C:27]([N+:30]([O-:32])=[O:31])[C:28]=1[OH:29])[CH:24]=O)[CH3:19].[NH2:33][C:34]([NH2:36])=[O:35].Cl>C(O)C>[CH2:18]([O:20][C:21]1[CH:22]=[C:23]([CH:24]2[C:9]([C:5]3[CH:6]=[CH:7][CH:8]=[C:3]([O:2][CH3:1])[CH:4]=3)=[C:10]([C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=3)[NH:36][C:34](=[O:35])[NH:33]2)[CH:26]=[C:27]([N+:30]([O-:32])=[O:31])[C:28]=1[OH:29])[CH3:19]

Komponenten

6

Edukt 4

HCID 313Hydrochloric AcidHCID 1176UreaHCID 5848783-Ethoxy-4-hydroxy-5-nitrobenzaldehydeHCID 27596142-(3-Methoxyphenyl)-1-phenylethan-1-one

Produkt 1

HCID 513476274-(3-ethoxy-4-hydroxy-5-nitrophenyl)-5-(3-methoxyphenyl)-6-phenyl-3,4-dihydropyrimidin-2(1H)-oneAusbeute 2,5 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel

Versuchsvorschrift

To a solution of 2-(3-methoxyphenyl)-1-phenylethanone (400 mg, 1.77 mmol), 3-ethoxy-4-hydroxy-5-nitrobenzaldehyde (374 mg, 1.77 mmol) and urea (244 mg, 5.31 mmol) in 20 mL of ethanol was added 0.2 mL of concentrated HCl, then the mixture was stirred at reflux for 4 days. After the solvent was removed under reduced pressure, the residue was purified by HPLC (35-65% acetonitrile+0.1% trifluoroacetic acid in water, over 15 min.) and then purified by thin layer chromatography (PE:EtOAc=1:2) further to give Compound 23 (20 mg, yield 2.5%). 1H NMR (CD3OD 400 MHz): δ 7.43 (s, 1H), 7.17 (s, 5H), 6.86-6.82 (m, 2H), 6.48 (d, J=6.4 Hz, 1H), 6.40 (d, J=8.0 Hz, 1H), 6.30 (s, 1H), 5.03 (s, 1H), 3.91-3.89 (m, 2H), 3.37 (s, 3H), 1.30 (t, J=7.2 Hz, 3H); MS (ESI): m/z 462.3 [M+1]+.

Aufarbeitung

  1. temperatureat reflux for 4 days
  2. customAfter the solvent was removed under reduced pressure
  3. customthe residue was purified by HPLC (35-65% acetonitrile+0.1% trifluoroacetic acid in water, over 15 min.)
  4. custompurified by thin layer chromatography (PE:EtOAc=1:2) further

Quellen und Nachweise

ORD-Eintrag
ord-8e095919a31b48a7bae8b118addfb42b
Quelldatensatz
uspto-grants-2016_03
Patentnummer
US09283229B2

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