2,2-Diphenylethylamine → {3-[3-(2,2-Diphenyl-ethylamino)-propoxy]-phenyl}-acetic acid methyl ester

HRID 881655Notes

Reaction equation

HRID 881655 reaction equation
[CH3:1][O:2][C:3](=[O:16])[CH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[C:7]([O:11][CH2:12][CH2:13][CH2:14]Br)[CH:6]=1.[C:17]1([CH:23]([C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)[CH2:24][NH2:25])[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1>CS(C)=O.O>[CH3:1][O:2][C:3](=[O:16])[CH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[C:7]([O:11][CH2:12][CH2:13][CH2:14][NH:25][CH2:24][CH:23]([C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)[CH:6]=1

Participants

5

Reactant 2

HCID 775752,2-DiphenylethylamineHCID 10565189Methyl [3-(3-bromopropoxy)phenyl]acetate

Product 1

HCID 68906807{3-[3-(2,2-Diphenyl-ethylamino)-propoxy]-phenyl}-acetic acid methyl esterYield 96.3%

Reagents, catalysts & solvents 2

HCID 679Dimethyl SulfoxideSolventHCID 962WaterSolvent

Procedure

A solution of [3-(3-bromo-propoxy)-phenyl]-acetic acid methyl ester (2) (2.0 g, 0.007 mol) and 2,2-diphenylethylamine (2.5 g, 0.013 mol) in DMSO (5 mL) was stirred at room temperature for 18 hours. 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 (9:1 CH2Cl2/MeOH) to give the desired product as oil 2.72 g in 96% yield. 1H NMR (CDCl3) δ 7.24 (m, 7H), 7.19 (t, 3H), 6.85 (d, 1H), 6.74 (s, 1H), 6.72 (d, 2H), 5.26 (s, 1H), 4.22 (t, 1H), 3.96 (t, 2H), 3.68 (s, 3H), 3.57 (d, 2H), 3.26 (d, 2H), 2.84 (t, 2H), 1.92 (m, 2H). 13C NMR (CDCl3) δ 173.3, 160.5, 144.4, 136.7, 130.9, 130.1, 129.5, 129.4, 127.9, 122.9, 116.9, 114.6, 67.6, 56.0, 53.5, 52.6, 48.3, 42.6, 31.0.

Workup

  1. extractionextracted with EtOAc (3×25 mL)
  2. washThe combined organic extracts were washed with brine (15 mL)
  3. dry with materialdried over Na2SO4
  4. concentrationconcentrated to an oil, which
  5. customwas purified by flash chromatography (9:1 CH2Cl2/MeOH)

Sources & evidence

ORD record
ord-f8ea7da50d5c43b688661a3a551acbf1
Source dataset
uspto-grants-2015_03
Patent number
US08993628B2

Reaction notes

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