Cyclohexylamine → N-Cyclohexyl-5-(5,6-dimethoxy-3-methyl-1,4-benzoquinon-2-yl)methyl-2-acetoxybenzamide

HRID 1830372Notes

Reaction equation

HRID 1830372 reaction equation
[CH:1]1([NH2:7])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.C(N(CC)CC)C.[Cl-].ClC1N(C)CC[NH+]1C.[CH3:24][O:25][C:26]1[C:27](=[O:50])[C:28]([CH3:49])=[C:29]([CH2:35][C:36]2[CH:37]=[CH:38][C:39]([O:45][C:46](=[O:48])[CH3:47])=[C:40]([CH:44]=2)[C:41](O)=[O:42])[C:30](=[O:34])[C:31]=1[O:32][CH3:33]>C(Cl)Cl>[CH:1]1([NH:7][C:41](=[O:42])[C:40]2[CH:44]=[C:36]([CH2:35][C:29]3[C:30](=[O:34])[C:31]([O:32][CH3:33])=[C:26]([O:25][CH3:24])[C:27](=[O:50])[C:28]=3[CH3:49])[CH:37]=[CH:38][C:39]=2[O:45][C:46](=[O:48])[CH3:47])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1

Participants

6

Reactant 4

HCID 7965CyclohexylamineHCID 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 22054318N-Cyclohexyl-5-(5,6-dimethoxy-3-methyl-1,4-benzoquinon-2-yl)methyl-2-acetoxybenzamideYield 55%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Cyclohexylamine (0.159 g, 1.604 mmol), triethylamine (0.162 g, 1.604 mmol) and 2-chloro-1,3-dimethylimidazolinium chloride (0.271 g, 1.604 mmol) were added to a methylene chloride solution (50 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 (hexand:ethyl acetate=1:1) and then recrystallized from ether to obtain the titled compound (0.134 g, 0.294 mmol, 55%).

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 (hexand:ethyl acetate=1:1)
  6. customrecrystallized from ether

Sources & evidence

ORD record
ord-f5e354e1503d4bbab4d3b848f265d84e
Source dataset
uspto-grants-2006_06
Patent number
US07064124B2

Reaction notes

Loading…