Naphthalene → 1-Naphthalenesulfonic acid

HRID 1389709

Reaction equation

HRID 1389709 reaction equation
[CH:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][CH:2]=1.[S:11](=O)(=[O:14])([OH:13])[OH:12]>>[C:9]1([S:11]([OH:14])(=[O:13])=[O:12])[C:10]2[C:5](=[CH:4][CH:3]=[CH:2][CH:1]=2)[CH:6]=[CH:7][CH:8]=1

Participants

3

Reactant 2

HCID 931NaphthaleneHCID 1118Sulfuric Acid2×

Product 1

HCID 68121-Naphthalenesulfonic acid

Conditions

Temperature
150 °C

Procedure

256 g naphthalene (2.0 m) and 200 g sulfuric acid 98% (2.0 m) were charged to a reactor and mixed. The mixture was then heated rapidly to 150° C. and agitated at 150° C. for 2 hours. Then 100 g sulfuric acid 98% was added and the mixture agitated for an additional hour to obtain the naphthalenesulfonic acid.

Workup

  1. additionmixed
  2. stirringthe mixture agitated for an additional hour

Sources & evidence

ORD record
ord-cbc305bac623410f9a0bb501d6d51c03
Source dataset
uspto-grants-1981_01
Patent number
US04245994

Linked notes

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