Potassium Carbonate → HCID 68906749, compound

HRID 881663Notes

Reaction equation

HRID 881663 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.[C:31]([C:35]1[CH:36]=[C:37]([CH:40]=[C:41]([C:43]([CH3:46])([CH3:45])[CH3:44])[CH:42]=1)[CH2:38]Br)([CH3:34])([CH3:33])[CH3:32].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)[CH2:38][C:37]2[CH:36]=[C:35]([C:31]([CH3:33])([CH3:32])[CH3:34])[CH:42]=[C:41]([C:43]([CH3:46])([CH3:45])[CH3:44])[CH:40]=2)[CH:6]=1

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 44475071-(Bromomethyl)-3,5-di-tert-butylbenzeneHCID 68906807{3-[3-(2,2-Diphenyl-ethylamino)-propoxy]-phenyl}-acetic acid methyl ester

Product 1

HCID 68906749HCID 68906749, compoundYield 92.4%

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) (0.40 g, 0.001 mol) in DMF (10 mL), was added 3,5-di-tert-butyl-benzyl bromide (0.30 g, 0.0011 mol) and powdered potassium carbonate (0.96 g, 0.007 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 (9:1 Hexanes/EtOAc) to give the desired product as oil 0.56 g in 92% yield. 1H NMR (CDCl3) δ 7.19 (m, 10H), 7.12 (t, 2H), 7.01 (d, 2H), 6.82 (d, 1H), 6.63 (s, 1H), 6.59 (d, 1H), 4.17 (t, 1H), 3.67 (s, 3H), 3.62 (s, 2H), 3.57 (t, 2H), 3.55 (s, 2H), 3.10 (d, 2H), 2.58 (t, 2H), 1.77 (t, 2H), 1.26 (s, 18H). 13C NMR (CDCl3) δ 173.3, 160.6, 151.8, 145.1, 140.1, 136.5, 130.8, 129.8, 129.7, 129.6, 129.5, 127.6, 124.5, 122.6, 122.1, 117.0, 114.6, 67.3, 61.3, 53.4, 52.3, 51.2, 51.1, 42.7, 36.1, 32.9, 28.2.

Workup

  1. temperaturethe reaction mixture was heated
  2. temperatureAfter cooling
  3. extractionextracted with EtOAc (3×25 mL)
  4. washThe combined organic extracts were washed with brine (15 mL)
  5. dry with materialdried over Na2SO4
  6. concentrationconcentrated to an oil, which
  7. customwas purified by flash chromatography (9:1 Hexanes/EtOAc)

Sources & evidence

ORD record
ord-049a1f45e09f44829f406859bb6e5e21
Source dataset
uspto-grants-2015_03
Patent number
US08993628B2

Reaction notes

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