Aniline → HCID 54716335, compound

HRID 2232103Notes

Reaction equation

HRID 2232103 reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[OH:8][C:9]1[C:18]2[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=2)[N:12]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)[CH2:11][C:10]=1[C:25]([O:27]CC)=O>C1(C)C=CC=CC=1>[OH:8][C:9]1[C:18]2[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=2)[N:12]([C:19]2[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=2)[CH2:11][C:10]=1[C:25]([NH:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1)=[O:27]

Participants

4

Reactant 2

HCID 6115AnilineHCID 85585358HCID 85585358, compound

Product 1

HCID 54716335HCID 54716335, compoundYield 65.1%

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

A solution of 12.63 g of aniline and 10.0 g of 1,2-dihydro-4-hydroxy-1-phenyl-3-quinolinecarboxylic acid, ethyl ester in 250 ml of toluene was refluxed for 24 hours in a soxhlet apparatus containing 10 g of 4 Å molecular sieves. Evaporation of the volatiles afforded a residue which was purified by means of high pressure liquid chromatography (silica gel: dichloromethane as the eluent). The resultant solution was degassed and evaporated. Recrystallization of the residue from diethyl ether yielded 7.55 g (65%) of 1,2-dihydro-4-hydroxy-1-phenyl-N-phenyl-3-quinolinecarboxamide, m.p. 120° C.

Workup

  1. additioncontaining 10 g of 4 Å molecular sieves
  2. customEvaporation of the volatiles
  3. customafforded a residue which
  4. customwas purified by means of high pressure liquid chromatography (silica gel
  5. customThe resultant solution was degassed
  6. customevaporated
  7. customRecrystallization of the residue from diethyl ether

Sources & evidence

ORD record
ord-467a6b2c0ed148bcbe4ccfdb4726ea80
Source dataset
uspto-grants-1988_11
Patent number
US04786644

Reaction notes

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