Hydrochloric Acid → 4-Hydroxy-4'-octylazobenzene

HRID 867354

反応式

HRID 867354 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 (0.17M) of 4-octylaniline was cooled to 0° C. or below, 85 g of10% aqueous hydrochloric 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 toprecipitate the reaction product. The precipitate was separated by filtration, washed with water and dried 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 (0.10M) of 4-hydroxy-4'-octylazobenzene. The yield was 59%.

後処理

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

出典と根拠

ORDレコード
ord-e519b6dfa6e94381bd4fad218d7d3c12
出典データセット
uspto-grants-1988_10
特許番号
US04775223

関連ノート

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