Tributylphosphine → Methyl 3-cyclopropyl-3-(3-((6-(2-fluoro-5-methoxyphenyl)-5-neopentylpyridin-3-yl)methoxy)phenyl)propanoate

HRID 709782Notes

Reaction equation

HRID 709782 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([O:8][CH3:9])=[CH:4][C:3]=1[C:10]1[N:15]=[CH:14][C:13]([CH2:16][OH:17])=[CH:12][C:11]=1[CH2:18][C:19]([CH3:22])([CH3:21])[CH3:20].[CH:23]1([CH:26]([C:32]2[CH:37]=[CH:36][CH:35]=[C:34](O)[CH:33]=2)[CH2:27][C:28]([O:30][CH3:31])=[O:29])[CH2:25][CH2:24]1.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O.C(P(CCCC)CCCC)CCC>C1(C)C=CC=CC=1.CCCCCC.C(OCC)(=O)C>[CH:23]1([CH:26]([C:32]2[CH:33]=[CH:34][CH:35]=[C:36]([O:17][CH2:16][C:13]3[CH:14]=[N:15][C:10]([C:3]4[CH:4]=[C:5]([O:8][CH3:9])[CH:6]=[CH:7][C:2]=4[F:1])=[C:11]([CH2:18][C:19]([CH3:22])([CH3:21])[CH3:20])[CH:12]=3)[CH:37]=2)[CH2:27][C:28]([O:30][CH3:31])=[O:29])[CH2:24][CH2:25]1

Participants

7

Reactant 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 57706598Methyl 3-Cyclopropyl-3-(3-hydroxyphenyl)propanoateHCID 117760196(6-(2-Fluoro-5-methoxyphenyl)-5-neopentylpyridin-3-yl)methanol

Product 1

HCID 117760067Methyl 3-cyclopropyl-3-(3-((6-(2-fluoro-5-methoxyphenyl)-5-neopentylpyridin-3-yl)methoxy)phenyl)propanoateYield 86.4%

Reagents, catalysts & solvents 2

HCID 1140TolueneSolventHCID 21226206Ethyl acetate hexaneSolvent

Procedure

Under a nitrogen atmosphere, to a solution of (6-(2-fluoro-5-methoxyphenyl)-5-neopentylpyridin-3-yl)methanol (100 mg) and methyl 3-cyclopropyl-3-(3-hydroxyphenyl)propanoate (73 mg) in toluene (4.7 mL) were added 1,1′-(azodicarbonyl)dipiperidine (133 mg) and tributylphosphine (130 μL), and the mixture was stirred at room temperature for 60 hr. Hexane/ethyl acetate (1:1) was added to the reaction mixture, and the resulting precipitate was filtered off. The solvent in the filtrate was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (144 mg) as a colorless oil.

Workup

  1. filtrationthe resulting precipitate was filtered off
  2. customThe solvent in the filtrate was evaporated under reduced pressure
  3. customthe residue was purified by silica gel column chromatography (ethyl acetate/hexane)

Sources & evidence

ORD record
ord-ae8219d112434ec082a9753a0856e159
Source dataset
uspto-grants-2015_11
Patent number
US09181186B2

Reaction notes

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