Acetic Acid → 3-(5-Acetoxy-6-bromohexyl)-1-methyluracil

HRID 361518ノート

反応式

HRID 361518 の反応式
[OH:1][CH:2]([CH2:16]O)[CH2:3][CH2:4][CH2:5][CH2:6][N:7]1[C:12](=[O:13])[CH:11]=[CH:10][N:9]([CH3:14])[C:8]1=[O:15].[BrH:18].[C:19]([OH:22])(=O)[CH3:20].C(=O)(O)[O-].[Na+]>ClCCl.O>[C:19]([O:1][CH:2]([CH2:16][Br:18])[CH2:3][CH2:4][CH2:5][CH2:6][N:7]1[C:12](=[O:13])[CH:11]=[CH:10][N:9]([CH3:14])[C:8]1=[O:15])(=[O:22])[CH3:20]

参加物

7

反応物 4

HCID 176Acetic AcidHCID 260Hydrogen BromideHCID 516892Sodium BicarbonateHCID 232879503-(5,6-Dihydroxyhexyl)-1-methyluracil

生成物 1

HCID 232959163-(5-Acetoxy-6-bromohexyl)-1-methyluracil収率 100%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6344Dichloromethane溶媒

実験手順

A mixture of 3-(5,6-dihydroxyhexyl)-1-methyluracil (350 mg, 1.4 mmol) and a 30% solution of hydrogen bromide in acetic acid (0.87 mL, 4.3 mmol) was stirred for 45 minutes. The mixture was then added to a mixture of sodium bicarbonate (1.6 g), water (10 mL) and dichloromethane (20 mL). After 15 minutes of vigorous stirring, the layers were separated and the aqueous layer extracted with dichloromethane (3×40 mL). The combined organic layers were dried over sodium sulfate, then evaporated under vacuum to give 3-(5-acetoxy-6-bromohexyl)-1-methyluracil (500 mg, 100% yield).

後処理

  1. customthe layers were separated
  2. extractionthe aqueous layer extracted with dichloromethane (3×40 mL)
  3. dry with materialThe combined organic layers were dried over sodium sulfate
  4. customevaporated under vacuum

出典と根拠

ORDレコード
ord-f2937bff95de41b79f7760afcee9491d
出典データセット
uspto-grants-1999_02
特許番号
US05866576

反応ノート

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