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Potassium Carbonate → 3-Mppts

HRID 392390
Notes
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Reaction equation

HRID 392390 reaction equation
[CH3:1][O:2][C:3]1[CH:23]=[CH:22][CH:21]=[CH:20][C:4]=1[O:5][C:6]1[CH:7]=[C:8]([NH:12][CH2:13][C:14]2[CH:15]=[N:16][CH:17]=[CH:18][CH:19]=2)[CH:9]=[CH:10][CH:11]=1.[F:24][C:25]([F:32])([F:31])[CH2:26][S:27](Cl)(=[O:29])=[O:28].C(=O)([O-])[O-].[K+].[K+]>ClCCCl.N1C=CC=CC=1>[CH3:1][O:2][C:3]1[CH:23]=[CH:22][CH:21]=[CH:20][C:4]=1[O:5][C:6]1[CH:7]=[C:8]([N:12]([CH2:13][C:14]2[CH:15]=[N:16][CH:17]=[CH:18][CH:19]=2)[S:27]([CH2:26][C:25]([F:32])([F:31])[F:24])(=[O:29])=[O:28])[CH:9]=[CH:10][CH:11]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 742422,2,2-Trifluoroethanesulfonyl chlorideHCID 22663896N-(3-(2-Methoxyphenoxy)phenyl) pyrid-3-ylmethylamine

Product 1

HCID 102758023-MpptsYield 50%

Reagents, catalysts & solvents 1

HCID 21470604DCE PyridineSolvent

Conditions

Temperature
5 °C

Procedure

The resultant N-(3-(2-methoxyphenoxy)phenyl)pyrid-3-ylmethylamine was dissolved in 2:1 1,2-dichloroethane/pyridine (6 mL) under nitrogen, cooled (5° C.), and treated with 2,2,2-trifluoroethylsulfonyl chloride (300 mg, 1.64 mmol). After one hour at 5° C., the mixture was allowed to warm to room temperature and stirred for 18 h. The product mixture was treated with anhydrous potassium carbonate (500 mg), stirred 30 min, filtered, and the filtrate concentrated in vacuo. The residue was chromatographed on silica gel (eluted with 2:1 dichloromethane/ethyl acetate) to afford the title compound (226 mg, 50%) as a viscous pale amber oil. The hydrochloride salt was obtained by treatment of this material in methanol with ethereal HCl. 1H NMR: 8.49 (d,1H,J=4 Hz), 8.29 (s,1H), 7.60-7.65 (m,1H), 7.20-7.25 (m,2H), 7.10-7.20 (m,1H), 6.97 (d,1H,J=8 Hz), 6.90 (m,2H), 6.80-6.85 (m,2H), 6.76 (m,1H), 4.82 (s,2H), 3.70-3.85 (m,2H), 3.75 (s,3H). MS calcd. 452.4; MS (M+1) 453.3

Workup

  1. temperatureto warm to room temperature
  2. stirringstirred 30 min
  3. filtrationfiltered
  4. concentrationthe filtrate concentrated in vacuo
  5. customThe residue was chromatographed on silica gel (eluted with 2:1 dichloromethane/ethyl acetate)

Sources & evidence

ORD record
ord-e43d0ba112114d7cb53766689933d0b0
Source dataset
uspto-grants-2004_10
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06800651B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes