Hydrochloric Acid → 4-Hydroxy-4'-octylazobenzene

HRID 1680983

反応式

HRID 1680983 の反応式
[CH2:1]([C:9]1[CH:15]=[CH:14][C:12]([NH2:13])=[CH:11][CH:10]=1)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH3:8].Cl.[N:17]([O-])=O.[Na+].[OH-].[Na+].[C:23]1([OH:29])[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1>O>[OH:29][C:23]1[CH:28]=[CH:27][C:26]([N:17]=[N:13][C:12]2[CH:11]=[CH:10][C:9]([CH2:1][CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH3:8])=[CH:15][CH:14]=2)=[CH:25][CH:24]=1

参加物

7

反応物 5

HCID 313Hydrochloric Acid2 回HCID 996PhenolHCID 14798Sodium HydroxideHCID 853464-OctylanilineHCID 23668193Sodium Nitrite

生成物 1

HCID 27534414-Hydroxy-4'-octylazobenzene収率 59%

試薬・触媒・溶媒 1

HCID 962Water溶媒

実験手順

35 g (0.17 M) of 4-octylaniline was cooled to 0° C. or below, 85 g of 10% aqueous hydrochloride acid solution was added, and then a solution of 12.0 g of sodium nitrite in 68 ml of water was added. During the addition, the mixture was cooled so as not to exceed 0° C. After the addition, the mixture was allowed to react for 30 minutes, transferred into a dropping funnel and added dropwise into 170 g of an 8% NaOH aqueous solution containing 16 g of phenol held at 5° C. or below. After the addition, the mixture was stirred for 1 hour, and then 10% hydrochloric acid aqueous solution was added thereto until a pH of 5-6 to precipitate the reaction product. The precipitate was separated by filtration, washed with water, overnight under reduced pressure. After the drying, the product was washed with 500 ml of petroleum ether and further dried under reduced pressure to obtain 30.8 g (0.10 M) of 4-hydroxy-4'-octylazobenzene. The yield was 59%.

後処理

  1. additionDuring the addition
  2. temperaturethe mixture was cooled so as not
  3. customto exceed 0° C
  4. additionAfter the addition
  5. customto react for 30 minutes
  6. customtransferred into a dropping funnel
  7. customheld at 5° C. or below
  8. additionAfter the addition
  9. customuntil a pH of 5-6 to precipitate the reaction product
  10. customThe precipitate was separated by filtration
  11. washwashed with water, overnight under reduced pressure
  12. washAfter the drying, the product was washed with 500 ml of petroleum ether
  13. customfurther dried under reduced pressure

出典と根拠

ORDレコード
ord-4b99d2db8c994d2fbef3f30b237d8793
出典データセット
uspto-grants-1992_12
特許番号
US05167857

関連ノート

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