Pyridinium chloride → HCID 12635628, compound

HRID 1703193Notes

Reaction equation

HRID 1703193 reaction equation
C[O:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][CH:12]=1)[CH:9]=[C:8]1[C:13]([O:15][C:16](=[O:17])[C:7]1=[CH:6]2)=[O:14].Cl.N1C=CC=CC=1>>[OH:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][CH:12]=1)[CH:9]=[C:8]1[C:13]([O:15][C:16](=[O:17])[C:7]1=[CH:6]2)=[O:14]

Participants

3

Reactant 2

HCID 10176127Pyridinium chlorideHCID 10331344HCID 10331344, compound

Product 1

HCID 12635628HCID 12635628, compound

Procedure

6-Methoxy-2,3-naphthalenedicarboxylic anhydride (4.0 g) and pyridine hydrochloride (8.0 g) were fused at 240° for 0.5 hr. in a nitrogen atmosphere. The flask contents were cooled, washed (water) and filtered to give a crude sample of 6-hydroxy-2,3-naphthalenedicarboxylic anhydride (m.p. 266°) which was used without purification.

Workup

  1. temperatureThe flask contents were cooled
  2. washwashed (water)
  3. filtrationfiltered

Sources & evidence

ORD record
ord-7f56794f7d1949d082d5103e11115454
Source dataset
uspto-grants-1982_09
Patent number
US04351842

Reaction notes

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