Triphenylphosphine → Ethyl (2R)-2-([4-[1-(4-pentylphenylethyl)-5-methyl-1H-pyrrol-2-yl]phenyl]oxy)-3-phenylpropanoate

HRID 1072722Notes

Reaction equation

HRID 1072722 reaction equation
[CH2:1]([C:6]1[CH:11]=[CH:10][C:9]([CH2:12][CH2:13][N:14]2[C:18]([CH3:19])=[CH:17][CH:16]=[C:15]2[C:20]2[CH:25]=[CH:24][C:23]([OH:26])=[CH:22][CH:21]=2)=[CH:8][CH:7]=1)[CH2:2][CH2:3][CH2:4][CH3:5].O[C@@H:28]([CH2:34][C:35]1[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=1)[C:29]([O:31][CH2:32][CH3:33])=[O:30].N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>C1(C)C=CC=CC=1.O>[CH2:1]([C:6]1[CH:11]=[CH:10][C:9]([CH2:12][CH2:13][N:14]2[C:18]([CH3:19])=[CH:17][CH:16]=[C:15]2[C:20]2[CH:25]=[CH:24][C:23]([O:26][C@H:28]([CH2:34][C:35]3[CH:36]=[CH:37][CH:38]=[CH:39][CH:40]=3)[C:29]([O:31][CH2:32][CH3:33])=[O:30])=[CH:22][CH:21]=2)=[CH:8][CH:7]=1)[CH2:2][CH2:3][CH2:4][CH3:5]

Participants

7

Reactant 4

HCID 11776TriphenylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 9877619Ethyl phenyllactate, (-)-HCID 697308054-[1-(4-pentylphenylethyl)-5-methyl-1H-pyrrol-2-yl]phenol

Product 1

HCID 86588894Ethyl (2R)-2-([4-[1-(4-pentylphenylethyl)-5-methyl-1H-pyrrol-2-yl]phenyl]oxy)-3-phenylpropanoateYield 23%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 1140TolueneSolvent

Procedure

A solution of 4-[1-(4-pentylphenylethyl)-5-methyl-1H-pyrrol-2-yl]phenol (1.82 g, 5.2 mmol), ethyl (S)-2-hydroxy-3-phenylpropanoate (1.0 g, 5.1 mmol), 1,1′-(azodicarbonyl)dipiperidine (1.29 g, 5.1 mmol) and triphenylphosphine (1.34 g, 5.1 mmol) in toluene (5 ml) was stirred at 80° C. for 12 hours. The reaction solution was poured into water and extracted with ethyl acetate. The extract was washed with saturated brine and dried over magnesium sulfate anhydride. The solvent was removed under reduced pressure and the residue was purified by silica gel column chromatography (hexane:ethyl acetate=20:1) to give the object compound as an oily substance. 660 mg, (yield 23%)

Workup

  1. extractionextracted with ethyl acetate
  2. washThe extract was washed with saturated brine
  3. dry with materialdried over magnesium sulfate anhydride
  4. customThe solvent was removed under reduced pressure
  5. customthe residue was purified by silica gel column chromatography (hexane:ethyl acetate=20:1)
  6. customto give the object compound as an oily substance

Sources & evidence

ORD record
ord-0ebce4cdd14040e5bc23b8922505faa1
Source dataset
uspto-grants-2005_06
Patent number
US06911468B2

Reaction notes

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