2-Morpholinoethylamine → N-[2-[4-[[4-(2-oxazolyl)phenyl]methyl]phenoxy)ethyl]-4-morpholineethanamine

HRID 16531

Reaction equation

HRID 16531 reaction equation
[N:1]1([CH2:7][CH2:8][NH2:9])[CH2:6][CH2:5][O:4][CH2:3][CH2:2]1.I[CH2:11][CH2:12][O:13][C:14]1[CH:19]=[CH:18][C:17]([CH2:20][C:21]2[CH:26]=[CH:25][C:24]([C:27]3[O:28][CH:29]=[CH:30][N:31]=3)=[CH:23][CH:22]=2)=[CH:16][CH:15]=1>ClCCl>[O:28]1[CH:29]=[CH:30][N:31]=[C:27]1[C:24]1[CH:23]=[CH:22][C:21]([CH2:20][C:17]2[CH:16]=[CH:15][C:14]([O:13][CH2:12][CH2:11][NH:9][CH2:8][CH2:7][N:1]3[CH2:6][CH2:5][O:4][CH2:3][CH2:2]3)=[CH:19][CH:18]=2)=[CH:26][CH:25]=1

Participants

4

Reactant 2

HCID 4082852-MorpholinoethylamineHCID 684895932-[4-[[4-(2-Iodoethoxy)phenyl]methyl]phenyl]oxazole

Product 1

HCID 68488020N-[2-[4-[[4-(2-oxazolyl)phenyl]methyl]phenoxy)ethyl]-4-morpholineethanamineYield 86.2%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A solution of 2-(4-morpholinyl)ethanamine (1 g, 7.4 mmol) in dichloromethane was stirred as a solution of 2-[4-[[4-(2-iodoethoxy)phenyl]methyl]phenyl]oxazole (0.3 g, 0.74 mmol) in dichloromethane was added dropwise and the reaction was heated at reflux for 17 hours. The reaction was concentrated. The residue was dissolved in ethyl acetate and washed with water. The combined organic layers were dried and concentrated. Purification by chromatography on silica gel using a gradient of methanol in dichloromethane gave 0.26 g of N-[2-[4-[[4-(2-oxazolyl)phenyl]methyl]phenoxy]ethyl]-4-morpholineethanamine; 1H NMR (400 MHz, CDCl3) δ 7.97 (d, 2H), 7.68 (s, 1H), 7.27 (d, 2H), 7.21 (s, 1H), 7.13 (d, 2H), 6.82 (d, 2H), 4.08 (t, 2H), 3.96 (s, 2H), 3.67 (m, 4H), 3.03 (t, 2H), 2.78 (t, 2H), 2.51 (t, 2H), 2.43 (m, 4H) ppm.

Workup

  1. additionwas added dropwise
  2. temperaturethe reaction was heated
  3. temperatureat reflux for 17 hours
  4. concentrationThe reaction was concentrated
  5. dissolutionThe residue was dissolved in ethyl acetate
  6. washwashed with water
  7. customThe combined organic layers were dried
  8. concentrationconcentrated
  9. customPurification by chromatography on silica gel using a gradient of methanol in dichloromethane

Sources & evidence

ORD record
ord-cd78fef494c0437599027399df58753d
Source dataset
uspto-grants-2010_06
Patent number
US07737145B2

Linked notes

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