Propargyl bromide → 3-[4-chloro-2-fluoro-5-[(2-propynyl)-oxy]phenyl]-1-methyl-6-(trifluoromethyl)-2,4(1H, 3H)-pyrimidinedione

HRID 1450159ノート

反応式

HRID 1450159 の反応式
[Cl:1][C:2]1[C:7]([OH:8])=[CH:6][C:5]([N:9]2[C:14](=[O:15])[CH:13]=[C:12]([C:16]([F:19])([F:18])[F:17])[N:11]([CH3:20])[C:10]2=[O:21])=[C:4]([F:22])[CH:3]=1.C(=O)([O-])[O-].[K+].[K+].[CH2:29](Br)[C:30]#[CH:31]>C(#N)C.C1(C)C=CC=CC=1>[Cl:1][C:2]1[C:7]([O:8][CH2:31][C:30]#[CH:29])=[CH:6][C:5]([N:9]2[C:14](=[O:15])[CH:13]=[C:12]([C:16]([F:18])([F:17])[F:19])[N:11]([CH3:20])[C:10]2=[O:21])=[C:4]([F:22])[CH:3]=1

参加物

6

反応物 3

HCID 7842Propargyl bromideHCID 11430Potassium CarbonateHCID 112677571-methyl-6-trifluoromethyl-3-(4-chloro-2-fluoro-5-hydroxyphenyl)-2,4(1H,3H)-pyrimidinedione

生成物 1

HCID 199752553-[4-chloro-2-fluoro-5-[(2-propynyl)-oxy]phenyl]-1-methyl-6-(trifluoromethyl)-2,4(1H, 3H)-pyrimidinedione

試薬・触媒・溶媒 2

HCID 1140Toluene溶媒HCID 6342Acetonitrile溶媒

実験手順

To a solution of 200 mg (0.59 mmol) of 3-[4-chloro-2-fluoro-5-(hydroxy)phenyl]-1-methyl-6- (trifluoromethyl)-2,4 (1H,3H) -pyrimidinedione in 3 mL of acetonitrile was added 162 mg of potassium carbonate (1.18 mmol) and 131 mL (1.18 mmol) of an 80% solution of propargyl bromide in toluene. It was warmed under reflux for 2 h. The resulting mixture was filtered and the filtrate was concentrated in vacuo to give colorless oil which was flash chromatographed over silica gel, eluting with a 1:4 v:v mixture of ethyl acetate and hexane to give 204 mg of title compound as a white foam: 1H-NMR (CDCl3, 200 MHz) ppm 7.35 (d, 1H), 7.0 (d, 1H), 6.4 (s, 1H), 4.78 (d, 2H), 3.58 (s, 3H), 2.6 (d, 1H).

後処理

  1. temperatureIt was warmed
  2. temperatureunder reflux for 2 h
  3. filtrationThe resulting mixture was filtered
  4. concentrationthe filtrate was concentrated in vacuo
  5. customto give colorless oil which
  6. customchromatographed over silica gel
  7. washeluting with a 1:4 v
  8. additionv mixture of ethyl acetate and hexane

出典と根拠

ORDレコード
ord-e4489eb1e791451e988e8fd12bcb3265
出典データセット
uspto-grants-1997_02
特許番号
US05602077

反応ノート

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