Cesium carbonate → 2-(4-((2-(3-Chlorophenyl)-6-(trifluoromethyl)pyridin-4-yl)amino)phenyl)ethanol

HRID 1508817Notes

Reaction equation

HRID 1508817 reaction equation
Cl[C:2]1[CH:7]=[C:6]([C:8]([F:11])([F:10])[F:9])[N:5]=[C:4]([C:12]2[CH:17]=[CH:16][CH:15]=[C:14]([Cl:18])[CH:13]=2)[CH:3]=1.[NH2:19][C:20]1[CH:28]=[CH:27][C:23]([CH2:24][CH2:25][OH:26])=[CH:22][CH:21]=1.C1C=CC(P(C2C(C3C(P(C4C=CC=CC=4)C4C=CC=CC=4)=CC=C4C=3C=CC=C4)=C3C(C=CC=C3)=CC=2)C2C=CC=CC=2)=CC=1.C(=O)([O-])[O-].[Cs+].[Cs+]>O1CCOCC1.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[Cl:18][C:14]1[CH:13]=[C:12]([C:4]2[CH:3]=[C:2]([NH:19][C:20]3[CH:28]=[CH:27][C:23]([CH2:24][CH2:25][OH:26])=[CH:22][CH:21]=3)[CH:7]=[C:6]([C:8]([F:11])([F:10])[F:9])[N:5]=2)[CH:17]=[CH:16][CH:15]=1

Participants

7

Reactant 4

HCID 10796Cesium carbonateHCID 669044-Aminophenethyl alcoholHCID 634876Binap, (A+-)-HCID 901126574-Chloro-2-(3-chlorophenyl)-6-(trifluoromethyl)pyridine

Product 1

HCID 901127452-(4-((2-(3-Chlorophenyl)-6-(trifluoromethyl)pyridin-4-yl)amino)phenyl)ethanolYield 50%

Reagents, catalysts & solvents 2

HCID 167845palladium(II) acetateCatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
120 °C

Procedure

A 10-mL microwave vial was charged with 4-chloro-2-(3-chlorophenyl)-6-(trifluoromethyl)pyridine (0.140 g, 0.48 mmol), 4-aminophenethyl alcohol (0.099 g, 0.72 mmol), palladium acetate (0.005 g, 0.024 mmol), rac-BINAP (0.022 g, 0.036 mmol) and cesium carbonate (0.390 g, 1.20 mmol) in dioxane (5 mL) under argon. The reaction mixture was heated to 120° C. under microwave irradiation for 2 h. The reaction mixture was cooled, and absorbed onto silica (5 g). Purification by chromatography on silica using hexanes/ethyl acetate (10:0 to 0:10) as eluent followed by preparative HPLC (water/acetonitrile with 0.05% TFA) afforded the title compound (0.093 g, 50%) as a pale yellow solid. MW=392.80. M.p. 60-62° C. 1H NMR (DMSO-d6, 500 MHz) δ 9.30 (s, 1H), 7.99-7.96 (m, 1H), 7.91-7.86 (m, 1H), 7.57-7.51 (m, 2H), 7.50 (d, J=2.0 Hz, 1H), 7.30-7.26 (m, 2H), 7.24-7.20 (m, 2H), 7.18 (d, J=2.0 Hz, 1H), 4.64 (t, J=5.0 Hz, 1H), 3.67-3.58 (m, 2H), 2.73 (t, J=7.0 Hz, 2H); ESI MS m/z 393 [M+H]+.

Workup

  1. temperatureThe reaction mixture was cooled
  2. customabsorbed onto silica (5 g)
  3. customPurification by chromatography on silica

Sources & evidence

ORD record
ord-8afe01d3aca74ab3974201a1fcebcda3
Source dataset
uspto-grants-2015_12
Patent number
US09221843B2

Reaction notes

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