p-Aminoacetophenone → N-[5-(5,6-Dimethoxy-3-methyl-1,4-benzoquinon-2-yl)methyl-2-acetoxybenzoyl]-4-acetylaniline

HRID 1830323Notes

Reaction equation

HRID 1830323 reaction equation
[C:1]([C:4]1[CH:10]=[CH:9][C:7]([NH2:8])=[CH:6][CH:5]=1)(=[O:3])[CH3:2].C(N(CC)CC)C.[Cl-].ClC1N(C)CC[NH+]1C.[CH3:27][O:28][C:29]1[C:30](=[O:53])[C:31]([CH3:52])=[C:32]([CH2:38][C:39]2[CH:40]=[CH:41][C:42]([O:48][C:49](=[O:51])[CH3:50])=[C:43]([CH:47]=2)[C:44](O)=[O:45])[C:33](=[O:37])[C:34]=1[O:35][CH3:36]>C(Cl)Cl>[CH3:27][O:28][C:29]1[C:30](=[O:53])[C:31]([CH3:52])=[C:32]([CH2:38][C:39]2[CH:40]=[CH:41][C:42]([O:48][C:49](=[O:51])[CH3:50])=[C:43]([CH:47]=2)[C:44]([NH:8][C:7]2[CH:9]=[CH:10][C:4]([C:1](=[O:3])[CH3:2])=[CH:5][CH:6]=2)=[O:45])[C:33](=[O:37])[C:34]=1[O:35][CH3:36]

Participants

6

Reactant 4

HCID 7468p-AminoacetophenoneHCID 8471TriethylamineHCID 109867151H-Imidazolium, 2-chloro-4,5-dihydro-1,3-dimethyl-, chlorideHCID 220542715-(5,6-Dimethoxy-3-methyl-1,4-benzoquinon-2-yl)methyl-2-acetoxybenzoic Acid

Product 1

HCID 22054214N-[5-(5,6-Dimethoxy-3-methyl-1,4-benzoquinon-2-yl)methyl-2-acetoxybenzoyl]-4-acetylanilineYield 61%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

4-Acetylaniline (0.159 g, 1.18 mmol), triethylamine (0.119 g, 1.18 mmol) and 2-chloro-1,3-dimethylimidazolinium chloride (0.199 g, 1.18 mmol) were added to a methylene chloride solution (20 ml) of 5-(5,6-dimethoxy-3-methyl-1,4-benzoquinon-2-yl)methyl-2-acetoxybenzoic acid (0.200 g, 0.535 mmol) and the resulting solution was stirred at room temperature for 12 hours. The reaction solution was poured into ice water and then extracted with methylene chloride. The extract was washed with water and then dried, and the solvent was removed by distillation. The obtained residue was purified by preparative thin-layer chromatography (chloroform:methanol=1:2) to obtain the titled compound (0.160 g, 0.326 mmol, 61%).

Workup

  1. extractionextracted with methylene chloride
  2. washThe extract was washed with water
  3. customdried
  4. customthe solvent was removed by distillation
  5. customThe obtained residue was purified by preparative thin-layer chromatography (chloroform:methanol=1:2)

Sources & evidence

ORD record
ord-58213a8675f0435fb440bebb03a2ac94
Source dataset
uspto-grants-2006_06
Patent number
US07064124B2

Reaction notes

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