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

HRID 2177897

反応式

HRID 2177897 の反応式
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8](=O)[CH2:9][C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)=[CH:4][CH:3]=1.[CH2:17]([O:19][C:20]1[CH:21]=[C:22]([CH:25]=[C:26]([N+:29]([O-:31])=[O:30])[C:27]=1[OH:28])[CH:23]=O)[CH3:18].[NH2:32][C:33]([NH2:35])=[O:34].Cl>CCO.CO.CCOC(C)=O>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[NH:35][C:33](=[O:34])[NH:32][CH:23]([C:22]3[CH:25]=[C:26]([N+:29]([O-:31])=[O:30])[C:27]([OH:28])=[C:20]([O:19][CH2:17][CH3:18])[CH:21]=3)[C:9]=2[C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)=[CH:4][CH:3]=1

参加物

8

反応物 4

HCID 313Hydrochloric AcidHCID 1176UreaHCID 2338404'-Chloro-2-phenylacetophenoneHCID 5848783-Ethoxy-4-hydroxy-5-nitrobenzaldehyde

生成物 1

HCID 569615616-(4-chlorophenyl)-4-(3-ethoxy-4-hydroxy-5-nitrophenyl)-5-phenyl-3,4-dihydropyrimidin-2(1H)-one収率 7.8%

試薬・触媒・溶媒 3

HCID 702Ethanol溶媒HCID 887Methanol溶媒HCID 8857Ethyl Acetate溶媒

実験手順

A mixture of 1-(4-chlorophenyl)-2-phenylethanone (350 mg, 1.52 mmol), 3-ethoxy-4-hydroxy-5-nitrobenzaldehyde (320 mg, 1.52 mmol), and urea (272 mg, 4.53 mmol) in anhydrous EtOH (15 mL) was added concentrated HCl solution (0.5 mL), and the reaction mixture was refluxed for overnight. TLC (EtOAc:MeOH=10:1) showed that about 30% of starting materials were consumed, and the reaction mixture was concentrated. The residue was purified by column chromatography (EtOAc:MeOH=40:1) and preparative HPLC to afford the product Compound 36 as a yellow solid (55.1 mg, yield: 7.8%). 1H NMR (DMSO-d6 400 MHz): δ 10.30 (s, 1H), 8.79 (s, 1H), 7.55 (s, 1H), 7.42 (s, 1H), 7.30 (d, J=8.4 Hz, 2H), 7.20 (d, J=8.4 Hz, 2H), 7.18 (s, 1H), 7.00-7.10 (m, 3H), 6.82 (d, J=7.2 Hz, 2H), 5.20 (d, J=2.4 Hz, 1H), 4.00-4.10 (m, 2H), 1.33 (t, J=6.8 Hz, 3H); MS (ESI): m/z 466.0 [M+1]+.

後処理

  1. temperaturethe reaction mixture was refluxed for overnight
  2. customwere consumed
  3. concentrationthe reaction mixture was concentrated
  4. customThe residue was purified by column chromatography (EtOAc:MeOH=40:1) and preparative HPLC

出典と根拠

ORDレコード
ord-8a6d912b86644e249abf255b0cc87f51
出典データセット
uspto-grants-2015_06
特許番号
US09067893B2

関連ノート

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