Nitric Acid → HCID 14402878、化合物

HRID 1381824ノート

反応式

HRID 1381824 の反応式
[N+:1]([O-:4])(O)=[O:2].C(OC(=O)C)(=O)C.S(=O)(=O)(O)O.[C:17]([CH2:19][N:20]1[C:25]2[CH:26]=[CH:27][CH:28]=[CH:29][C:24]=2[O:23][CH2:22][C:21]1=[O:30])#[N:18].[OH-].[Na+]>O>[C:17]([CH2:19][N:20]1[C:25]2[CH:26]=[C:27]([N+:1]([O-:4])=[O:2])[CH:28]=[CH:29][C:24]=2[O:23][CH2:22][C:21]1=[O:30])#[N:18]

参加物

7

反応物 5

HCID 944Nitric AcidHCID 1118Sulfuric AcidHCID 7918Acetic AnhydrideHCID 14798Sodium HydroxideHCID 27358644-(Cyanomethyl)-2H-1,4-benzoxazin-3(4H)-one

生成物 1

HCID 14402878HCID 14402878、化合物

試薬・触媒・溶媒 1

HCID 962Water溶媒

反応条件

温度
0 °C

実験手順

Fuming (α 1.52) nitric acid (1.3 ml) is added dropwise to 0° C. to acetic anhydride (11.3 g), and thereafter a catalytic amount of concentrated sulfuric acid is added. To the solution is added portionwise at 0° C. 4-cyanomethyl-2H-1,4-benzoxazin-3(4H)-one (1.88 g). The mixture is stirred at 0° C. for 20 minutes, treated dropwise with a cold solution which is made by dissolving sodium hydroxide (10 g) in water (87.5 ml) and cooled to 0° C., stirred at 0° C. for 30 minutes to finish the reaction, and extracted with methyl isobutyl kotone. The extract is washed with water, dried, and evaporated. The resultant solid is recrystallized from ethanol to obtain an end product 4-cyanomethyl-6-nitro-2H-1,4-benzoxazin-3(4H)-one (1.3 g). mp. 173° C.

後処理

  1. additionTo the solution is added portionwise at 0° C
  2. additiontreated dropwise with a cold solution which
  3. temperaturecooled to 0° C.
  4. stirringstirred at 0° C. for 30 minutes
  5. customthe reaction
  6. extractionextracted with methyl isobutyl kotone
  7. washThe extract is washed with water
  8. customdried
  9. customevaporated
  10. customThe resultant solid is recrystallized from ethanol

出典と根拠

ORDレコード
ord-e15da29685884a71b7fef2dda3121417
出典データセット
uspto-grants-1989_02
特許番号
US04804394

反応ノート

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