Cesium carbonate → 3-[[3-(2-Methyl-5-pyridyloxy)phenyl][[3-(trifluoro-methoxy)phenyl]methyl]amino]-1,1,1-trifluoro-2-propanol

HRID 1282573Notes

Reaction equation

HRID 1282573 reaction equation
BrC1C=[C:4]([CH2:8][C:9]([NH:15][CH2:16][C:17]2[CH:22]=[CH:21][CH:20]=[C:19]([O:23][C:24]([F:27])([F:26])[F:25])[CH:18]=2)(O)[C:10](F)(F)F)[CH:5]=[CH:6]C=1.[OH:28][C:29]1[CH:30]=[CH:31][C:32]([CH3:35])=[N:33][CH:34]=1.C([O-])([O-])=O.[Cs+].[Cs+].[CH3:42][C:43](N(C)C)=[O:44]>>[CH3:35][C:32]1[CH:31]=[CH:30][C:29]([O:28][C:4]2[CH:8]=[C:9]([N:15]([CH2:16][C:17]3[CH:22]=[CH:21][CH:20]=[C:19]([O:23][C:24]([F:25])([F:26])[F:27])[CH:18]=3)[CH2:42][CH:43]([OH:44])[C:24]([F:27])([F:26])[F:25])[CH:10]=[CH:6][CH:5]=2)=[CH:34][N:33]=1

Participants

5

Reactant 4

HCID 10796Cesium carbonateHCID 142752-Methyl-5-hydroxypyridineHCID 31374DimethylacetamideHCID 23431137HCID 23431137, compound

Product 1

HCID 235060733-[[3-(2-Methyl-5-pyridyloxy)phenyl][[3-(trifluoro-methoxy)phenyl]methyl]amino]-1,1,1-trifluoro-2-propanolYield 61%

Conditions

Temperature
105 °C

Procedure

The 3-[(3-bromophenyl)([[3-(trifluoromethoxy)phenyl]methyl]amino]-1,1,1-trifluoro-2-propanol (500 mg, 1.1 mmol) product from EX-633B and 5-hydroxy-2-methylpyridine (262 mg, 2.4 mmol) were dissolved in dimethylacetamide (6 mL). Cs2CO3 (1.0 g, 3.1 mmol) and (CuCF3SO3)2C6H6 (150 mg) were added, and the mixture was heated to 105° C. for 96 h under an atmosphere of nitrogen, at which time HPLC analysis indicated that most of the starting materials had been consumed. After adding a water, the reaction mixture was extracted with ether, and the ether extracts were washed with brine and dried over anhydrous MgSO4. The crude product was purified by flash column chromatography on silica gel eluting with ethyl acetate:hexane (1:12) to give 326 mg (61%) of the desired 3-[[3-(2-methyl-5-pyridyloxy)phenyl][[3-(trifluoro-methoxy)phenyl]methyl]amino]-1,1,1-trifluoro-2-propanol product as a light amber oil, 99% pure by HPLC analysis. 1H NMR (CDCl3) δ8.00 (s, 1H), 7.29 (t 1H), 6.99 (s, 1H), 7.02-7.15 (m, 5H), 6.46 (dd, 1H), 6.29 (t, 1H), 6.25 (dd, 1H), 4.88 (br s, 1H), 4.67 (ABq, 2H), 4.36 (m, 1H), 3.88 (dd, 1H), 3.56(dd, 1H), 2.49 (s, 3H). 19F NMR (CDCl3) δ−58.2, (s, 3F), −79.1 (d, 3F). HRMS calcd. for C23H20N2O3F6: 487.1456 [M+H]+, found: 487.1425.

Workup

  1. customhad been consumed
  2. additionAfter adding a water
  3. extractionthe reaction mixture was extracted with ether
  4. washthe ether extracts were washed with brine
  5. dry with materialdried over anhydrous MgSO4
  6. customThe crude product was purified by flash column chromatography on silica gel eluting with ethyl acetate:hexane (1:12)

Sources & evidence

ORD record
ord-e13975198cf548878271fe198a038093
Source dataset
uspto-grants-2002_09
Patent number
US06455519B1

Reaction notes

Loading…