Hydrochloric Acid → HCID 88636013, compound

HRID 230996Notes

Reaction equation

HRID 230996 reaction equation
[OH-:1].[Na+:2].C([O:13][C:14]1[C:27]2=[C:28]3[C:29]4[C:24]([CH:25]=[CH:26]2)=[C:23]([S:30]([O-:33])(=[O:32])=[O:31])[CH:22]=[C:21]([S:34]([O-:37])(=[O:36])=[O:35])[C:20]=4[CH:19]=[CH:18][C:17]3=[C:16](S([O-])(=O)=O)[CH:15]=1)CCCCCCCCC.Cl>O>[Na+:2].[Na+:2].[CH2:26]([O:1][C:16]1[C:17]2=[C:28]3[C:29]4[C:20]([CH:19]=[CH:18]2)=[C:21]([S:34]([O-:37])(=[O:35])=[O:36])[CH:22]=[C:23]([S:30]([O-:33])(=[O:32])=[O:31])[C:24]=4[CH:25]=[CH:26][C:27]3=[C:14]([OH:13])[CH:15]=1)[CH2:27][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH3:29]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 5047016HCID 5047016, compound

Product 1

HCID 88636013HCID 88636013, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

14.5 g Sodium hydroxide and 9.0 g water are heated to ca. 130° C. and 8.53 g 1-decyloxypyrene-3,6,8-trisulfonate (structure IV, R=decyl, M=Na) are added to the melt in small portions under stirring. The temperature is raised within 30 min to 190° C. The mixture is cooled, cautiously acidified with concentrated hydrochloric acid, and the resulting precipitate is filtered and recrystallized from a saturated aqueous salt solution. For further purification it is recrystallized from aqueous ethanol. Yield is 2.6 g of yellow crystals that decompose at above 232° C. and which have a green fluorescence that is strongly pH-dependent in the pH 6-8 range.

Workup

  1. temperatureThe temperature is raised within 30 min to 190° C
  2. temperatureThe mixture is cooled
  3. filtrationthe resulting precipitate is filtered
  4. customrecrystallized from a saturated aqueous salt solution
  5. customFor further purification it
  6. customis recrystallized from aqueous ethanol
  7. customat above 232° C.

Sources & evidence

ORD record
ord-61d0c88c1c714787859d87f63e3f25e0
Source dataset
uspto-grants-1989_07
Patent number
US04844841

Reaction notes

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