Water → 2-Naphthol

HRID 1249640

반응식

HRID 1249640 반응식
[CH:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][C:2]=1S([O-])(=O)=O.[Na+].[OH-:16].[Na+].O>C(C1C(CC2C=CC=CC=2)=C(C)C=CC=1)C1C=CC=CC=1>[CH:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][C:2]=1[OH:16]

참가 물질

5

반응물 3

HCID 962WaterHCID 14798Sodium HydroxideHCID 23661868Sodium 2-naphthalenesulfonate

생성물 1

HCID 86632-Naphthol수율 92.5%

시약·촉매·용매 1

HCID 3034397Methylbis(phenylmethyl)benzene용매

반응 조건

온도
300 °C

실험 절차

Sodium naphthalene-2-sulfonate (230 g) was suspended in 795 g of dibenzyltoluene, and 176 g of a 50% aqueous solution of sodium hydroxide was added. The mixture was stirred under a nitrogen stream and heated to 300° C. to dehydrate it. The dehydrated mixture was stirred at 310° C. for 3 hours. After cooling, 1.2 liters of water was added to the reaction mixture to separate the reaction medium layer. The aqueous layer was decolorized with activated carbon and then precipitated with an acid to give 133.2 g (yield 92.5%) of 2-naphthol.

후처리

  1. stirringThe dehydrated mixture was stirred at 310° C. for 3 hours
  2. temperatureAfter cooling
  3. customto separate the reaction medium layer
  4. customprecipitated with an acid

출처 및 근거

ORD 기록
ord-a364fb2dd81c4501b9d18df5c1bee329
출처 데이터셋
uspto-grants-1986_12
특허 번호
US04633024

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