Hydrogen Bromide → 2-Bromo-1-(2,5-dimethyloxazol-4-yl)ethanone

HRID 1587890

反応式

HRID 1587890 の反応式
[CH3:1][C:2]1[O:3][C:4]([CH3:10])=[C:5]([C:7](=[O:9])[CH3:8])[N:6]=1.[BrH:11].BrBr>C(O)(=O)C>[CH3:1][C:2]1[O:3][C:4]([CH3:10])=[C:5]([C:7](=[O:9])[CH2:8][Br:11])[N:6]=1

参加物

5

反応物 3

HCID 260Hydrogen BromideHCID 24408BromineHCID 147385831-(2,5-Dimethyl-1,3-oxazol-4-yl)ethan-1-one

生成物 1

HCID 140762322-Bromo-1-(2,5-dimethyloxazol-4-yl)ethanone

試薬・触媒・溶媒 1

HCID 176Acetic Acid溶媒3 回

反応条件

温度
100 °C

実験手順

2.8 g (0.02 mol) of 2,5-Dimethyl-4-acetyl-oxazole are dissolved in 30 ml of glacial acetic acid, and 3 ml of a 35% strength solution of hydrogen bromide in glacial acetic acid are added. The mixture is heated to 100° C. and, over the course of 1 hour, a solution of 3.2 g (0.02 mol) of bromine in 10 ml of glacial acetic acid is added. After a further 2 hours the solvent is removed, and the residue is triturated with 50 ml of ether and filtered off with suction.

後処理

  1. customAfter a further 2 hours the solvent is removed
  2. customthe residue is triturated with 50 ml of ether
  3. filtrationfiltered off with suction

出典と根拠

ORDレコード
ord-250d3fb97d2141a6b00dddf9b871a827
出典データセット
uspto-grants-1993_06
特許番号
US05219852

関連ノート

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