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Allyl bromide → 1,6-Dihydro-2-methoxy-6-methyl-4-(3-nitrophenyl)-1-(2-propenyl)-5-pyrimidinecarboxylic acid, 1-methylethyl ester

HRID 1788752
ノート
印刷プレビュー

反応式

HRID 1788752 の反応式
[CH3:1][O:2][C:3]1[NH:4][C:5]([CH3:24])=[C:6]([C:18]([O:20][CH:21]([CH3:23])[CH3:22])=[O:19])[CH:7]([C:9]2[CH:14]=[CH:13][CH:12]=[C:11]([N+:15]([O-:17])=[O:16])[CH:10]=2)[N:8]=1.C(=O)([O-])[O-].[K+].[K+].[CH2:31](Br)[CH:32]=[CH2:33]>CN(C)C=O.C(OCC)(=O)C>[CH3:1][O:2][C:3]1[N:4]([CH2:33][CH:32]=[CH2:31])[CH:5]([CH3:24])[C:6]([C:18]([O:20][CH:21]([CH3:22])[CH3:23])=[O:19])=[C:7]([C:9]2[CH:14]=[CH:13][CH:12]=[C:11]([N+:15]([O-:17])=[O:16])[CH:10]=2)[N:8]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 3

HCID 7841Allyl bromideHCID 11430Potassium CarbonateHCID 146271971,4-Dihydro-2-methoxy-6-methyl-4-(3-nitrophenyl)-5-pyrimidinecarboxylic acid, 1-methyethyl ester

生成物 1

HCID 571142891,6-Dihydro-2-methoxy-6-methyl-4-(3-nitrophenyl)-1-(2-propenyl)-5-pyrimidinecarboxylic acid, 1-methylethyl ester収率 58.9%

試薬・触媒・溶媒 2

HCID 6228
Dimethylformamide
溶媒
HCID 8857Ethyl Acetate溶媒

実験手順

A solution of 1,4-dihydro-2-methoxy-6-methyl-4-(3-nitrophenyl)-5-pyrimidinecarboxylic acid, 1-methylethyl ester (4.0 g, 12.0 mmol; see Example 1A) in dry dimethylformamide (10 ml) was treated with finely ground potassium carbonate (6.6 g, 48.0 mmoles) and allyl bromide (1.7 ml, 20.0 mmole). The resulting suspension was allowed to stir under argon at room temperature for 10 hours. The reaction was diluted with ethyl acetate, filtered and the filtrate was washed with water and brine. It was dried over anhydrous magnesium sulfate and evaporated to provide a yellow oil. Purification by flash chromatography (20% ethyl acetate in hexanes) yielded the title compound (2.64 g) as a yellow oil.

後処理

  1. filtrationfiltered
  2. washthe filtrate was washed with water and brine
  3. dry with materialIt was dried over anhydrous magnesium sulfate
  4. customevaporated
  5. customto provide a yellow oil
  6. customPurification by flash chromatography (20% ethyl acetate in hexanes)

出典と根拠

ORDレコード
ord-149ebce89605495e8a96c6b0c1e5b343
出典データセット
uspto-grants-1987_08
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US04684655

反応ノート

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