Sodium Hydroxide → 5-Bromo-2-methoxybenzonitrile

HRID 264753

反応式

HRID 264753 の反応式
[Br:1][C:2]1[CH:9]=[C:6]([CH:7]=O)[C:5]([O:10][CH3:11])=[CH:4][CH:3]=1.Cl.[NH2:13]O.C([O-])=O.[Na+].[OH-].[Na+]>C(O)=O>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([O:10][CH3:11])=[C:6]([CH:9]=1)[C:7]#[N:13]

参加物

6

反応物 4

HCID 14798Sodium HydroxideHCID 906845-Bromo-2-methoxybenzaldehydeHCID 443297Hydroxyamine hydrochlorideHCID 2723810Sodium Formate

生成物 1

HCID 44185605-Bromo-2-methoxybenzonitrile

試薬・触媒・溶媒 1

HCID 284Formic Acid溶媒

反応条件

温度
100 °C

実験手順

A mixture of 6.45 g 5-bromo-o-anisaldehyde, 2.2 g of hydroxylamine hydrochloride, 4.1 g of sodium formate and 20 mL formic acid were heated at 100° C. with stirring for 1 h. The reaction mixture was poured onto ice water and the mixture was made basic by the careful addition of 50% sodium hydroxide. The product was extracted with ether, the ether extracts were dried over magnesium sulfate and the solvent was removed in vacuo. The residue was crystallized from ether/hexane to afford 5-bromo-2-methoxybenzonitrile.

後処理

  1. additionThe reaction mixture was poured onto ice water
  2. extractionThe product was extracted with ether
  3. dry with materialthe ether extracts were dried over magnesium sulfate
  4. customthe solvent was removed in vacuo
  5. customThe residue was crystallized from ether/hexane

出典と根拠

ORDレコード
ord-c518a896f52f4dd3a56617238dbfa418
出典データセット
uspto-grants-1997_07
特許番号
US05646281

関連ノート

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