Potassium Carbonate → HCID 59440121, compound

HRID 1968509Notes

Reaction equation

HRID 1968509 reaction equation
S(O[CH2:12][CH2:13][O:14][CH2:15][CH2:16][O:17][CH2:18][CH2:19][O:20][CH2:21][CH2:22][C:23]([O:25][CH3:26])=[O:24])(C1C=CC(C)=CC=1)(=O)=O.[OH:27][C:28]1[CH:29]=[C:30]([CH2:36][OH:37])[CH:31]=[C:32]([CH2:34][OH:35])[CH:33]=1.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C>[OH:35][CH2:34][C:32]1[CH:33]=[C:28]([CH:29]=[C:30]([CH2:36][OH:37])[CH:31]=1)[O:27][CH2:12][CH2:13][O:14][CH2:15][CH2:16][O:17][CH2:18][CH2:19][O:20][CH2:21][CH2:22][C:23]([O:25][CH3:26])=[O:24]

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 15194153,5-Di(hydroxymethyl)phenolHCID 59440124HCID 59440124, compound

Product 1

HCID 59440121HCID 59440121, compoundYield 26.1%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
75 °C

Procedure

To a stirred mixture of methyl 3-(2-(2-(2-(tosyloxy)ethoxy)ethoxy)ethoxy)propanoate (263a) (1.504 g, 3.85 mmol) and (5-hydroxy-1,3-phenylene)dimethanol (21) (0.54 g, 3.50 mmol) in anhydrous DMF (7.8 ml) was added potassium carbonate (0.726 g, 5.25 mmol). The reaction was stirred at room temperature for 18 hours at 75° C. The mixture was allowed to cool to room temperature, quenched with water, and extracted with ethyl acetate. The organic extracts were washed with brine, dried over anhydrous magnesium sulfate, filtered and concentrated. Purification by silica gel chromatography (5% MeOH/CH2Cl2) yielded methyl 3-(2-(2-(2-(3,5-bis(hydroxymethyl)phenoxy)ethoxy)ethoxy)ethoxy)propanoate (263b)(340 mg, 26%). 1H NMR (400 Hz, CDCl3): δ 6.83 (s, 1H), 6.75 (s, 2H), 4.52 (s, 4H), 4.05 (t, J=4.8 Hz, 2), 3.79 (t, J=4.8 Hz, 2H), 3.70 (t, J=6.4 Hz, 2H), 3.65 (s, 3H), 3.70-3.56 (m, 8H), 3.26 (s, 2H), 2.55 (t, J=6.4 Hz, 2H);13C NMR (400 Hz, CDCl3): δ 172.31, 159.1, 143.0, 117.7, 112.1, 70.8, 70.7, 70.5, 70.4, 69.8, 67.5, 66.6, 64.7, 51.8, 34.9; MS (m/z), found 395.2 (M+Na)+.

Workup

  1. temperatureto cool to room temperature
  2. customquenched with water
  3. extractionextracted with ethyl acetate
  4. washThe organic extracts were washed with brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customPurification by silica gel chromatography (5% MeOH/CH2Cl2)

Sources & evidence

ORD record
ord-ce90515476694ac99b088d8306384baa
Source dataset
uspto-grants-2013_04
Patent number
US08426402B2

Reaction notes

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