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

HRID 709648Notes

Reaction equation

HRID 709648 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[CH:11]=[CH:12][C:13]([CH2:21][OH:22])=[N:14][C:15]=1[CH2:16][C:17]([CH3:20])([CH3:19])[CH3:18].[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:22][CH2:21][C:13]3[CH:12]=[CH:11][C:10]([C:3]4[CH:4]=[C:5]([O:8][CH3:9])[CH:6]=[CH:7][C:2]=4[F:1])=[C:15]([CH2:16][C:17]([CH3:19])([CH3:18])[CH3:20])[N:14]=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 117759814(5-(2-Fluoro-5-methoxyphenyl)-6-neopentylpyridin-2-yl)methanol

Product 1

HCID 117760183Methyl 3-cyclopropyl-3-(3-((5-(2-fluoro-5-methoxyphenyl)-6-neopentylpyridin-2-yl)methoxy)phenyl)propanoateYield 67.2%

Reagents, catalysts & solvents 2

HCID 1140TolueneSolventHCID 21226206Ethyl acetate hexaneSolvent

Procedure

Under a nitrogen atmosphere, to a solution of (5-(2-fluoro-5-methoxyphenyl)-6-neopentylpyridin-2-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 (131 μL) at room temperature, and the mixture was stirred at room temperature for 14 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 (112 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-1d7baee19460407da692c4d6e68a02b5
Source dataset
uspto-grants-2015_11
Patent number
US09181186B2

Reaction notes

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