Potassium Iodide → [Rac]-2-ethoxy-3-{2-methyl-4-[5-methyl-2-(3-trifluoromethyl-phenyl)-oxazol-4-ylmethoxy]-phenyl}-propionic acid ethyl ester
Reaction equation
[CH2:1]([O:3][C:4](=[O:18])[CH:5]([O:15][CH2:16][CH3:17])[CH2:6][C:7]1[CH:12]=[CH:11][C:10]([OH:13])=[CH:9][C:8]=1[CH3:14])[CH3:2].Cl[CH2:20][C:21]1[N:22]=[C:23]([C:27]2[CH:32]=[CH:31][CH:30]=[C:29]([C:33]([F:36])([F:35])[F:34])[CH:28]=2)[O:24][C:25]=1[CH3:26].FC(F)(F)C1C=C(C=CC=1)C=O.O=P(Cl)(Cl)Cl.C(=O)([O-])[O-].[Cs+].[Cs+].[I-].[K+]>>[CH2:1]([O:3][C:4](=[O:18])[CH:5]([O:15][CH2:16][CH3:17])[CH2:6][C:7]1[CH:12]=[CH:11][C:10]([O:13][CH2:20][C:21]2[N:22]=[C:23]([C:27]3[CH:32]=[CH:31][CH:30]=[C:29]([C:33]([F:36])([F:35])[F:34])[CH:28]=3)[O:24][C:25]=2[CH3:26])=[CH:9][C:8]=1[CH3:14])[CH3:2]Participants
7
Reactant 6
Product 1
Procedure
In analogy to the procedure described in example 1 f], [rac]-2-ethoxy-3-(4-hydroxy-2-methyl-phenyl)-propionic acid ethyl ester (example 34 b]) was reacted with 4-chloromethyl-5-methyl-2-(3-trifluoromethyl-phenyl)-oxazole (prepared from 3-trifluoromethyl-benzaldehyde and diacetyl monoxyme followed by treatment with POCl3 in analogy to the procedures described in examples 5 a] and 2 b]) in the presence of cesium carbonate and potassium iodide to yield [rac]-2-ethoxy-3-{2-methyl-4-[5-methyl-2-(3-trifluoromethyl-phenyl)-oxazol-4-ylmethoxy]-phenyl}-propionic acid ethyl ester as colorless liquid.
Sources & evidence
- ORD record
- ord-ad952dd9a33f46e0b516101d29459bc8
- Source dataset
- uspto-grants-2005_11
- Patent number
- US06969725B2
Reaction notes
Loading…