Sodium dodecylbenzene sulphonate → Dodecyl benzenesulfonate

HRID 1195641Notes

Reaction equation

HRID 1195641 reaction equation
[CH2:1]([O:13][S:14]([C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1)(=[O:16])=[O:15])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH3:12].[Na]>O.CCC(C)=O>[CH2:1]([O:13][S:14]([C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1)(=[O:16])=[O:15])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH3:12]

Participants

4

Reactant 1

HCID 57371080Sodium dodecylbenzene sulphonate

Product 1

HCID 15900Dodecyl benzenesulfonateYield 117.4%

Reagents, catalysts & solvents 2

HCID 962WaterSolvent2×HCID 6569Methyl Ethyl KetoneSolvent

Procedure

The condensate was suspended in a mixture of 200 ml of water and 500 ml of MEK and a solution of 41.8 g (0.120 mole) of sodium n-dodecylbenzenesulfonate in 600 ml of water was added to the resulting suspension while stirring. When the suspension was stirred for a while and then allowed to stand, it separated into two phases. The upper phase was poured into 2 l of water while stirring and the resulting yellow precipitate was collected by filtering and dried, to give 46 g of n-dodecylbenzenesulfonate of the condensate of 4-diazodiphenylamine with terephthalaldehydic acid (diazo resin (c) of the present invention).

Workup

  1. stirringWhen the suspension was stirred for a while
  2. customit separated into two phases
  3. additionThe upper phase was poured into 2 l of water
  4. stirringwhile stirring
  5. customthe resulting yellow precipitate was collected
  6. filtrationby filtering
  7. customdried

Sources & evidence

ORD record
ord-3a397f948f3b4e39b8880420b1c9412f
Source dataset
uspto-grants-1992_05
Patent number
US05112743

Reaction notes

Loading…