Triphenylphosphine → Ethyl 3-cyclopropyl-3-(2-(((2'-fluoro-5'-methoxy-2-neopentyl-[1,1'-biphenyl]-4-yl)oxy)methyl)pyridin-4-yl)propanoate

HRID 1049479Notes

Reaction equation

HRID 1049479 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:15]=[CH:14][C:13]([OH:16])=[CH:12][C:11]=1[CH2:17][C:18]([CH3:21])([CH3:20])[CH3:19].[CH:22]1([CH:25]([C:32]2[CH:37]=[CH:36][N:35]=[C:34]([CH2:38]O)[CH:33]=2)[CH2:26][C:27]([O:29][CH2:30][CH3:31])=[O:28])[CH2:24][CH2:23]1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OCC)=O)=NC(OCC)=O>C1COCC1.C1(C)C=CC=CC=1>[CH:22]1([CH:25]([C:32]2[CH:37]=[CH:36][N:35]=[C:34]([CH2:38][O:16][C:13]3[CH:14]=[CH: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]([CH2:17][C:18]([CH3:21])([CH3:20])[CH3:19])[CH:12]=3)[CH:33]=2)[CH2:26][C:27]([O:29][CH2:30][CH3:31])=[O:28])[CH2:24][CH2:23]1

Participants

7

Reactant 4

HCID 11776Triphenylphosphine2×HCID 220568ethyl N-ethoxycarbonyliminocarbamate2×HCID 117759601Ethyl 3-cyclopropyl-3-(2-(hydroxymethyl)pyridin-4-yl)propanoateHCID 1177596322'-Fluoro-5'-methoxy-2-neopentyl-[1,1'-biphenyl]-4-ol

Product 1

HCID 117759833Ethyl 3-cyclopropyl-3-(2-(((2'-fluoro-5'-methoxy-2-neopentyl-[1,1'-biphenyl]-4-yl)oxy)methyl)pyridin-4-yl)propanoateYield 39.4%

Reagents, catalysts & solvents 2

HCID 1140TolueneSolvent2×HCID 8028TetrahydrofuranSolvent

Procedure

Under a nitrogen atmosphere, to a solution of 2′-fluoro-5′-methoxy-2-neopentyl-[1,1′-biphenyl]-4-ol (100 mg), ethyl 3-cyclopropyl-3-(2-(hydroxymethyl)pyridin-4-yl)propanoate (94 mg) and triphenylphosphine (182 mg) in THF (3.0 mL) was added a 40% solution of diethyl azodicarboxylate in toluene (315 μL) at room temperature, and the mixture was stirred for 14 hr. Triphenylphosphine (182 mg) and a 40% solution of diethyl azodicarboxylate in toluene (315 μL) were added to the reaction mixture, and the mixture was further stirred at room temperature for 14 hr. The solvent of the reaction mixture was evaporated under reduced pressure and the residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane) to give the title compound (71 mg) as a pink oil.

Workup

  1. stirringthe mixture was further stirred at room temperature for 14 hr
  2. customThe solvent of the reaction mixture was evaporated under reduced pressure
  3. customthe residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane)

Sources & evidence

ORD record
ord-a7e028afe41841799f8ea302882f59bd
Source dataset
uspto-grants-2016_07
Patent number
US09382188B2

Reaction notes

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