Lithium Chloride → HCID 9910763, compound

HRID 433859Notes

Reaction equation

HRID 433859 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([F:8])[C:3]=1[C:9]1[O:10][CH2:11][CH:12]([C:14]2[CH:19]=[CH:18][C:17](Br)=[CH:16][CH:15]=2)[N:13]=1.[F:21][C:22]([F:36])([F:35])[CH2:23][O:24][C:25]1[CH:30]=[CH:29][C:28]([Sn](C)(C)C)=[CH:27][N:26]=1.[Cl-].[Li+]>O1CCOCC1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([F:8])[C:3]=1[C:9]1[O:10][CH2:11][CH:12]([C:14]2[CH:19]=[CH:18][C:17]([C:28]3[CH:29]=[CH:30][C:25]([O:24][CH2:23][C:22]([F:36])([F:21])[F:35])=[N:26][CH:27]=3)=[CH:16][CH:15]=2)[N:13]=1

Participants

6

Reactant 3

HCID 433294Lithium ChlorideHCID 11046011HCID 11046011, compoundHCID 17911510HCID 17911510, compound

Product 1

HCID 9910763HCID 9910763, compound

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 312751,4-DioxaneSolvent

Procedure

2-(2,6-Difluorophenyl)-4-(4-bromophenyl)oxazoline (VP4) (2.0 g, 5.9 mmol) was mixed with 2-trifluoroethoxy-5-trimethylstannylpyridine (2.61 g, 7.7 mmol), tetrakis(triphenylphosphine)palladium (0.22 g, 0.18 mmol) and lithium chloride (0.38 g, 8.9 mmol) in dioxane (30 ml) and refluxed for 9 hours. After extractive work-up and column chromatography, 2-(2,6-difluorophenyl)-4-[4-(2-trifluoroethoxypyridin-5-yl)phenyl]oxazoline was obtained, 1.37 g, colorless crystals.

Workup

  1. temperaturerefluxed for 9 hours

Sources & evidence

ORD record
ord-1cd2a2d29dd04ea7bf7456ed21421f51
Source dataset
uspto-grants-2003_12
Patent number
US06670307B2

Reaction notes

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