Lithium Hydroxide → 2-Bromo-1,3-thiazole-4-carboxylic acid

HRID 70284ノート

反応式

HRID 70284 の反応式
[Br:1][C:2]1[S:3][CH:4]=[C:5]([C:7]([O:9]C)=[O:8])[N:6]=1.[OH-].[Li+]>C1COCC1>[Br:1][C:2]1[S:3][CH:4]=[C:5]([C:7]([OH:9])=[O:8])[N:6]=1

参加物

4

反応物 2

HCID 3939Lithium HydroxideHCID 2763213Methyl 2-bromothiazole-4-carboxylate

生成物 1

HCID 27632092-Bromo-1,3-thiazole-4-carboxylic acid

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

反応条件

温度
70 °C

実験手順

A mixture of methyl 2-bromo-1,3-thiazole-4-carboxylate (4.2 g, 18.9 mmol), THF (120 mL) and 1N lithium hydroxide (50 mL) was heated at 70° C. for 1 h. The organic solvent was removed in vacuo. The residual aqueous solution was cooled to 0-5° C. and acidified to pH1 with 1N HCl solution. The tile compound was obtained by filtration, as a white solid.

後処理

  1. customThe organic solvent was removed in vacuo
  2. temperatureThe residual aqueous solution was cooled to 0-5° C.
  3. customThe tile compound was obtained by filtration, as a white solid

出典と根拠

ORDレコード
ord-0b0ecf0743b940e48c436651d98251dc
出典データセット
uspto-grants-2014_09
特許番号
US08822518B2

反応ノート

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