Reaction equation
C(S([O-])(=O)=O)(F)(F)F.C(S([O-])(=O)=O)(F)(F)F.C(S([O-])(=O)=O)(F)(F)F.[Yb+3].[CH3:26][C:27]1[O:31][N:30]=[C:29]([C:32]2[CH:37]=[CH:36][C:35]([NH2:38])=[CH:34][CH:33]=2)[N:28]=1.[CH3:39][O:40][C:41]1[C:49]2[O:48][CH2:47][CH2:46][C:45]=2[CH:44]=[C:43]([CH:50]=O)[CH:42]=1.FC(F)(F)C(O)=O.[C:59](C1C=CC(NC(C2C=C(OC)C(OC)=CC=2F)C2NC(=O)N(C3C=CC=CC=3C(O)=O)N=2)=CC=1)(=N)[NH2:60].C[Si](C#N)(C)C>C1COCC1>[CH3:39][O:40][C:41]1[C:49]2[O:48][CH2:47][CH2:46][C:45]=2[CH:44]=[C:43]([CH:50]([NH:38][C:35]2[CH:36]=[CH:37][C:32]([C:29]3[N:28]=[C:27]([CH3:26])[O:31][N:30]=3)=[CH:33][CH:34]=2)[C:59]#[N:60])[CH:42]=1Participants
7
Reactant 5
HCID 82115Trimethylsilyl cyanide
HCID 2733225Ytterbium triflate
HCID 181881764-(5-Methyl-1,2,4-oxadiazol-3-yl)aniline
HCID 223438017-Methoxy-2,3-dihydrobenzofuran-5-carbaldehyde
HCID 1363370832-{3-[(4-carbamimidoylphenylamino)-(2-fluoro-4,5-dimethoxyphenyl)methyl]5-oxo-4,5-dihydro-[1,2,4]triazol-1-yl}benzoic Acid TrifluoroacetateProduct 1
Reagents, catalysts & solvents 1
Procedure
To a solution of 426 mg of Yb(OTf)3 in 30 ml of THF there were added 1.2 g of 4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylamine, 1.22 g of 7-methoxy-2,3-dihydrobenzofuran-5-carbaldehyde [CAS No. 363185-46-0], 1g of MS3A and 1.9 ml of trimethylsilyl cyanide under a nitrogen atmosphere, and the mixture was stirred at room temperature. The reaction mixture was filtered through celite, and the celite was washed with 100 ml of ethyl acetate. The organic layer was concentrated under reduced pressure to give a crude product of (7-methoxy-2,3-dihydrobenzofuran-5-yl)-[4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylamino]acetonitrile.
Workup
- filtrationThe reaction mixture was filtered through celite
- washthe celite was washed with 100 ml of ethyl acetate
- concentrationThe organic layer was concentrated under reduced pressure
Sources & evidence
- ORD record
- ord-dbb87a5c4d7d450a8e6e9fc0bd136f52
- Source dataset
- uspto-grants-2011_04
- Patent number
- US07928228B2
Linked notes
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