Naphthalene → 1-Naphthalenesulfonic acid

HRID 1389710Notes

Reaction equation

HRID 1389710 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

89.6 g naphthalene (0.7 m) and 70 g sulfuric acid 98% (0.7 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 30 g sulfuric acid 98% (0.3 m) was added and agitated for an additional hour at 150° C.

Workup

  1. additionmixed
  2. stirringagitated for an additional hour at 150° C.

Sources & evidence

ORD record
ord-226a8966f45041a386905501fd01a60b
Source dataset
uspto-grants-1981_01
Patent number
US04245994

Reaction notes

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