ホームMCPワークベンチSkills
ホームワークベンチ通知マイページ
llms.txt · MCPガイドプライバシーポリシー · 利用規約 · サポートv1.8.0
  1. ホーム
  2. /反応

Sodium Carbonate → 1-(2-hydroxyethyl)-5-phenylpyrimidin-2(1H)-one

HRID 1878769
ノート
印刷プレビュー

反応式

HRID 1878769 の反応式
Br[C:2]1[CH:3]=[N:4][C:5](=[O:11])[N:6]([CH2:8][CH2:9][OH:10])[CH:7]=1.[C:12]1(B(O)O)[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1.C(=O)([O-])[O-].[Na+].[Na+]>COCCOC>[OH:10][CH2:9][CH2:8][N:6]1[CH:7]=[C:2]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[CH:3]=[N:4][C:5]1=[O:11]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 10340Sodium CarbonateHCID 66827Phenylboronic AcidHCID 204942745-Bromo-1-(2-hydroxyethyl)pyrimidin-2(1H)-one

生成物 1

HCID 598429971-(2-hydroxyethyl)-5-phenylpyrimidin-2(1H)-one収率 70.5%

試薬・触媒・溶媒 1

HCID 80711,2-Dimethoxyethane溶媒

反応条件

温度
75 °C

実験手順

To a 10 mL round bottomed flask was added 5-bromo-1-(2-hydroxyethyl)pyrimidin-2(1H)-one (0.088 g, 0.40 mmol), phenylboronic acid (0.098 g, 0.80 mmol), 1,2-dimethoxyethane (2.5 mL) and 2 M sodium carbonate (0.40 mL, 0.80 mmol). The mixture was carefully evacuated and backfilled with N2. This was repeated twice. To the mixture was added dichloro[1,1′-bis(diphenylphosphino)ferrocene]palladium (II)dichloromethane adduct (0.029 g, 0.040 mmol). The mixture was again carefully evacuated and backfilled with N2. This was repeated once. The mixture was then heated at 75° C. for 1.5 hours. After cooling to room temperature, the mixture was poured into water (50 mL) and then extracted with EtOAc (2×) and then with 25% iPrOH/CHCl3 (3×). The combined extracts were washed with brine (1×), dried (Na2SO4) and concentrated onto silica. Purification by silica gel chromatography (0 to 2% MeOH (2M NH3)/CH2Cl2) afforded 1-(2-hydroxyethyl)-5-phenylpyrimidin-2(1H)-one (0.061 g, 70% yield) as an off-white solid. MS (ESI, pos. ion.) m/z: 217 (MH+). Calc'd exact mass for C12H12N2O2: 216. 1H NMR (400 MHz, DMSO-d6) δ ppm 3.71 (q, J=5.3 Hz, 2 H), 4.00 (t, J=5.3 Hz, 2 H), 4.95 (t, J=5.6 Hz, 1 H), 7.35 (t, J=7.3 Hz, 1 H), 7.46 (t, J=7.6 Hz, 2 H), 7.61 (d, J=7.4 Hz, 2 H), 8.44 (d, J=3.3 Hz, 1 H), 8.95 (d, J=3.3 Hz, 1 H).

後処理

  1. customThe mixture was carefully evacuated
  2. customThe mixture was again carefully evacuated
  3. temperatureAfter cooling to room temperature
  4. additionthe mixture was poured into water (50 mL)
  5. extractionextracted with EtOAc (2×)
  6. washThe combined extracts were washed with brine (1×)
  7. dry with materialdried (Na2SO4)
  8. concentrationconcentrated onto silica
  9. customPurification by silica gel chromatography (0 to 2% MeOH (2M NH3)/CH2Cl2)

出典と根拠

ORDレコード
ord-0eb8088da0e44356bb7d33023dc85531
出典データセット
uspto-grants-2012_11
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08314087B2

反応ノート

読み込み中…

このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート