HCID 22918353, compound → HCID 22076399, compound

HRID 2396068Notes

Reaction equation

HRID 2396068 reaction equation
[NH:1]([C:8]1[CH:9]=[C:10]([C:24]([OH:26])=[O:25])[C:11](=[CH:15][C:16]=1[NH:17][C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1)[C:12]([OH:14])=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1>CC(OC(C)=O)=O>[NH:17]([C:16]1[CH:15]=[C:11]2[C:12](=[O:14])[O:26][C:24](=[O:25])[C:10]2=[CH:9][C:8]=1[NH:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1)[C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1

Participants

3

Reactant 1

HCID 22918353HCID 22918353, compound

Product 1

HCID 22076399HCID 22076399, compound

Reagents, catalysts & solvents 1

HCID 7918Acetic AnhydrideSolvent

Procedure

A solution of 2 g of 4,5-dianilino-phthalic acid (Example 1'b)) in acetanhydride is heated to 60° C. for 30 min, resulting in a strongyellow colouring of the reaction mixture. After evaporation, yellow crystals of the crude title compound remain which are recrystallized from acetone/diethyl ether; the title compound has a m.p. of 196°-197° C. C20H14N2O3 : molecular weight calculated 330, found 330 (FD-MS).

Workup

  1. customis heated to 60° C. for 30 min
  2. customresulting in a strongyellow colouring of the reaction mixture
  3. customAfter evaporation, yellow crystals of the crude title compound
  4. customare recrystallized from acetone/diethyl ether

Sources & evidence

ORD record
ord-366231c3f272412db62290a8cf757fe6
Source dataset
uspto-grants-1996_02
Patent number
US05491144

Reaction notes

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