Sodium Hydroxide → 2,6-Diaminobenzonitrile

HRID 1704270노트

반응식

HRID 1704270 반응식
[N+:1]([C:4]1[CH:11]=[CH:10][CH:9]=[C:8]([N+:12]([O-])=O)[C:5]=1[C:6]#[N:7])([O-])=O.[OH-].[Na+]>Cl.O>[NH2:1][C:4]1[CH:11]=[CH:10][CH:9]=[C:8]([NH2:12])[C:5]=1[C:6]#[N:7]

참가 물질

5

반응물 2

HCID 14798Sodium HydroxideHCID 520718Dinitrobenzonitrile

생성물 1

HCID 124029832,6-Diaminobenzonitrile수율 60.2%

시약·촉매·용매 2

HCID 313Hydrochloric Acid용매HCID 962Water용매

실험 절차

2,6-Dinitrobenzonitrile (10.0 grams) is added in portions to a stirred solution of stannous chloride (82.5 grams) in concentrated HCl (230 ml.) at room temperature. Stirring is continued at room temperature for two and one-half hours, then the reaction mixture is cooled to 0° and made strongly basic with 50% NaOH. The reaction mixture is diluted with water (1 l.) and extracted four times with methylenechloride (200 ml.). The combined extracts are washed once with water (200 ml.), dried over sodium sulfate, then taken to dryness under reduced pressure. Recrystallization of the crude solid (4.6 grams) from benzene-Skellysolve "B" gives the product (4.15 grams) melting at 91°-92°.

후처리

  1. customis continued at room temperature for two and one-half hours
  2. temperaturethe reaction mixture is cooled to 0°
  3. extractionextracted four times with methylenechloride (200 ml.)
  4. washThe combined extracts are washed once with water (200 ml.)
  5. dry with materialdried over sodium sulfate
  6. customRecrystallization of the crude solid (4.6 grams) from benzene-Skellysolve "B"

출처 및 근거

ORD 기록
ord-e8125e59d13b4c0990b44dcedef162d4
출처 데이터셋
uspto-grants-1978_11
특허 번호
US04126617

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