Phenyl chloroformate → N,O-Bis-(phenoxycarbonyl)-hydroxylamine

HRID 413575

反応式

HRID 413575 の反応式
[C:1](=[O:4])([OH:3])[O-].[Na+].Cl.[NH2:7][OH:8].[C:9]1([O:15][C:16](Cl)=[O:17])[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1>O>[O:3]([C:1]([NH:7][O:8][C:16]([O:15][C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1)=[O:17])=[O:4])[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1

参加物

5

反応物 3

HCID 15891Phenyl chloroformateHCID 443297Hydroxyamine hydrochlorideHCID 516892Sodium Bicarbonate2 回

生成物 1

HCID 10107329N,O-Bis-(phenoxycarbonyl)-hydroxylamine収率 68%

試薬・触媒・溶媒 1

HCID 962Water溶媒2 回

実験手順

To a solution of sodium bicarbonate (21.5 g, 0.256 mol) in water (150 ml) at 0° C. was added hydroxylamine hydrochloride (8.8 g, 0.127 mol). The reaction mixture was tirred for 30 min. and phenylchloroformate (60 g, 0.383 mol) was introduced directly into the vigorously stirred mixture. Sodium bicarbonate (32.3 g, 3.85 mol) in water (300 ml) was added to the mixture. The mixture was stirred for 30 min., the ice-bath removed and stirring continued for an additional 2 h at room temperature. The resultant suspension was filtered and the filter cake washed with water. The wet filter cake was collected, suspended in hexane, filtered and again washed with hexane. The solid was kept at 0° C. overnight to afford N,O-bis-phenoxycarbonylhydroxylamine (23.5 g, 68%) as a solid. Melting point: 80-82° C. 1H NMR (CDCl3, 200 MHz): δ 7.26(m, 5H), 7.42 (m, 5H) and 8.54 (s, 1H).

後処理

  1. customthe ice-bath removed
  2. stirringstirring
  3. waitcontinued for an additional 2 h at room temperature
  4. filtrationThe resultant suspension was filtered
  5. washthe filter cake washed with water
  6. customThe wet filter cake was collected
  7. filtrationfiltered
  8. washagain washed with hexane
  9. waitThe solid was kept at 0° C. overnight

出典と根拠

ORDレコード
ord-f4e30f4bede849dfb005ba3725dbd292
出典データセット
uspto-grants-2003_05
特許番号
US06566538B1

関連ノート

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