Potassium Carbonate → (3-{3-[(2,2-Diphenyl-ethyl)-(3-methoxy-benzyl)-amino]-propoxy}-phenyl)-acetic acid methyl ester

HRID 881658Notes

Reaction equation

HRID 881658 reaction equation
[CH3:1][O:2][C:3](=[O:30])[CH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[C:7]([O:11][CH2:12][CH2:13][CH2:14][NH:15][CH2:16][CH:17]([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=2)[CH:6]=1.[CH3:31][O:32][C:33]1[CH:34]=[C:35]([CH:38]=[CH:39][CH:40]=1)[CH2:36]Br.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C.O>[CH3:1][O:2][C:3](=[O:30])[CH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[C:7]([O:11][CH2:12][CH2:13][CH2:14][N:15]([CH2:16][CH:17]([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[C:18]2[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=2)[CH2:36][C:35]2[CH:38]=[CH:39][CH:40]=[C:33]([O:32][CH3:31])[CH:34]=2)[CH:6]=1

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 40672073-Methoxybenzyl bromideHCID 68906807{3-[3-(2,2-Diphenyl-ethylamino)-propoxy]-phenyl}-acetic acid methyl ester

Product 1

HCID 68908406(3-{3-[(2,2-Diphenyl-ethyl)-(3-methoxy-benzyl)-amino]-propoxy}-phenyl)-acetic acid methyl esterYield 77.3%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Conditions

Temperature
45 °C

Procedure

To a solution of {3-[3-(2,2-diphenyl-ethylamino)-propoxy]-phenyl}-acetic acid methyl ester (3) (0.74 g, 0.002 mol) in DMF (10 mL), was added 3-methoxybenzyl bromide (0.47 g, 0.0023 mol) and powdered and potassium carbonate (1.93 g, 0.014 mol), the reaction mixture was heated and stirred at 45° C. for 18 hours. After cooling, the reaction mixture was diluted with water (30 mL) and extracted with EtOAc (3×25 mL). The combined organic extracts were washed with brine (15 mL), dried over Na2SO4, concentrated to an oil, which was purified by flash chromatography (8:2 Hexanes/EtOAc) to give the desired product as oil 0.81 g in 77% yield. 1H NMR (CDCl3) δ 7.19 (s, 1H), 7.17 (m, 11H), 7.09 (t, 1H), 6.83 (d, 1H), 6.72 (t, 2H), 6.59 (m 2H), 4.19 (t, 1H), 3.72 (s, 6H), 3.61 (s, 4H), 3.55 (d, 2H), 3.07 (d, 2H), 2.62 (t, 2H), 1.82 (t, 2H); 13C NMR (CDCl3) δ 173.4, 160.9, 160.6, 144.9, 142.8, 136.6, 130.8, 130.3, 129.9, 129.7, 129.6, 127.6, 122.7, 122.6, 116.9, 115.2, 114.5, 114.3, 67.0, 61.2, 60.6, 56.4, 51.9, 51.2, 42.7, 28.2.

Workup

  1. temperatureAfter cooling
  2. extractionextracted with EtOAc (3×25 mL)
  3. washThe combined organic extracts were washed with brine (15 mL)
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated to an oil, which
  6. customwas purified by flash chromatography (8:2 Hexanes/EtOAc)

Sources & evidence

ORD record
ord-0f77a6fd8ad34f2badcbc7c0c70f7636
Source dataset
uspto-grants-2015_03
Patent number
US08993628B2

Reaction notes

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