Disodium disulfite → HCID 22636308, compound

HRID 2415897Notes

Reaction equation

HRID 2415897 reaction equation
[C:1]1([OH:12])[C:10]2[C:5](=[CH:6][CH:7]=[C:8](O)[CH:9]=2)[CH:4]=[CH:3][CH:2]=1.[CH2:13]([N:20]1[CH2:25][CH2:24][NH:23][CH2:22][CH2:21]1)[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1.S(OS([O-])=O)([O-])=O.[Na+].[Na+]>O>[CH2:13]([N:20]1[CH2:25][CH2:24][N:23]([C:8]2[CH:9]=[C:10]3[C:5]([CH:4]=[CH:3][CH:2]=[C:1]3[OH:12])=[CH:6][CH:7]=2)[CH2:22][CH2:21]1)[C:14]1[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=1

Participants

5

Reactant 3

HCID 24346Disodium disulfiteHCID 684621,7-NaphthalenediolHCID 759941-Benzylpiperazine

Product 1

HCID 22636308HCID 22636308, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A suspension of 25 g (0.156 mol) of naphthalene-1,7-diol, 35 ml (0.202 mol) of 1-benzyl-piperazine and 60 g (0.316 mol) of sodium disulphite in 250 ml of water is refluxed for four days under nitrogen. After cooling, the precipitate is filtered off, washed with water and dried in a drying cupboard.

Workup

  1. temperatureis refluxed for four days under nitrogen
  2. temperatureAfter cooling
  3. filtrationthe precipitate is filtered off
  4. washwashed with water
  5. customdried in a drying cupboard

Sources & evidence

ORD record
ord-73ee484951d5424c9283d59948318c54
Source dataset
uspto-grants-2004_11
Patent number
US06821967B2

Reaction notes

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