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Potassium Carbonate → Trifluoroacetic acid

HRID 60868
Notes
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Reaction equation

HRID 60868 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([CH3:8])=[CH:4][C:3]=1[C:9]([N:11]1[CH2:16][CH2:15][CH2:14][C@H:13]([CH3:17])[C@@H:12]1[CH2:18][NH:19][C:20]1[CH:25]=[CH:24][C:23]([C:26]([F:29])([F:28])[F:27])=[CH:22][N:21]=1)=[O:10].[CH3:30][N:31]1[CH:35]=[C:34](B2OC(C)(C)C(C)(C)O2)[CH:33]=[N:32]1.[C:45]([O-:48])([O-])=[O:46].[K+].[K+]>O1CCOCC1.O>[CH3:17][C@H:13]1[CH2:14][CH2:15][CH2:16][N:11]([C:9]([C:3]2[CH:4]=[C:5]([CH3:8])[CH:6]=[CH:7][C:2]=2[C:34]2[CH:33]=[N:32][N:31]([CH3:30])[CH:35]=2)=[O:10])[C@H:12]1[CH2:18][NH:19][C:20]1[CH:25]=[CH:24][C:23]([C:26]([F:29])([F:28])[F:27])=[CH:22][N:21]=1.[C:45]([OH:48])([C:26]([F:29])([F:28])[F:27])=[O:46]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 27739871-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 131737147rac-cis-(2-Bromo-5-methylphenyl)(3-methyl-2-(((5-(trifluoromethyl)pyridin-2-yl)amino)methyl)piperidin-1-yl)methanone

Product 2

HCID 6422Trifluoroacetic acidHCID 117727860US9896452, Ex. A315

Reagents, catalysts & solvents 1

HCID 218864351,4-Dioxane--water (1/1)Solvent

Conditions

Temperature
100 °C

Procedure

The mixture of rac-cis-(2-bromo-5-methylphenyl)(3-methyl-2-(((5-(trifluoromethyl)pyridin-2-yl)amino)methyl)piperidin-1-yl)methanone (0.045 g, 0.097 mmol), 1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (0.024 g, 0.116 mmol), P(PPh3)4 (0.017 g, 0.015 mmol), K2CO3 (0.4 g, 0.291 mmol) and dioxane/H2O (4:1, 3 mL) was degassed for 5 min and heated overnight at 100° C. oil bath. The completion of reaction was monitored by analytical HPLC. The mixture was cooled and extracted with EtOAc. The combined organic layers were washed with saturated NaHCO3 and dried over Na2SO4. The solvent was removed in vacuo to obtain a crude residue, which was purified by preparative-HPLC to obtain the title compound as TFA salt. ESI-MS (m/z): 472, [M+1]+.

Workup

  1. customwas degassed for 5 min
  2. customThe completion of reaction
  3. temperatureThe mixture was cooled
  4. extractionextracted with EtOAc
  5. washThe combined organic layers were washed with saturated NaHCO3
  6. dry with materialdried over Na2SO4
  7. customThe solvent was removed in vacuo
  8. customto obtain a crude residue, which
  9. customwas purified by preparative-HPLC

Sources & evidence

ORD record
ord-3b156d59130a45f0b2052d7acc1ab7b1
Source dataset
uspto-grants-2016_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09440982B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes