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3-Bromobenzyl alcohol → 2-(3-Bromobenzyloxy)-5-fluoropyrimidin-4-ylamine

HRID 705558
Notes
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Reaction equation

HRID 705558 reaction equation
CC([O-])(C)C.[K+].[Br:7][C:8]1[CH:9]=[C:10]([CH2:14][OH:15])[CH:11]=[CH:12][CH:13]=1.Cl[C:17]1[N:22]=[C:21]([NH2:23])[C:20]([F:24])=[CH:19][N:18]=1>O>[Br:7][C:8]1[CH:9]=[C:10]([CH:11]=[CH:12][CH:13]=1)[CH2:14][O:15][C:17]1[N:22]=[C:21]([NH2:23])[C:20]([F:24])=[CH:19][N:18]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 851413-Bromobenzyl alcoholHCID 2543722-Chloro-5-fluoropyrimidin-4-amineHCID 23665647Potassium tert-butoxide

Product 1

HCID 578188342-(3-Bromobenzyloxy)-5-fluoropyrimidin-4-ylamineYield 49.3%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
90 °C

Procedure

To a magnetically stirred mixture of KOtBu (1.0 M in tBuOH, 1.36 ml, 1.36 mmol) was added (3-bromophenyl)methanol (0.25 g, 1.36 mmol). To the resulting solution was added 2-chloro-5-fluoropyrimidine-4-ylamine (0.10 g, 0.68 mmol) and the mixture was capped and stirred at 90° C. for 4 h. The reaction mixture was cooled to room temperature, diluted with water, and the resulting precipitate was collected by filtration. The solid was washed with water, washed with cyclohexane, and dried in the vacuum oven. A CH2Cl2 solution of the compound was loaded onto Biotage SCX column and eluted with CH2Cl2 followed by 2.0 M NH3 in MeOH. The solvent was evaporated under reduced pressure to give the title compound (0.100 g, 49%) as an off-white solid: mp 143-145° C.; 1H NMR (400 MHz, DMSO-d6) δ 7.90 (d, J=2.5 Hz, 1H), 7.61 (s, 1H), 7.43 (d, J=8.0 Hz, 1H), 7.36 (d, J=7.7 Hz, 1H), 7.22 (t, J=7.7 Hz, 1H), 5.28 (s, 2H), 5.20 (br s, 2H); GCMS (EI) m/z 297, 299 (M)+.

Workup

  1. customthe mixture was capped
  2. temperatureThe reaction mixture was cooled to room temperature
  3. filtrationthe resulting precipitate was collected by filtration
  4. washThe solid was washed with water
  5. washwashed with cyclohexane
  6. customdried in the vacuum oven
  7. washeluted with CH2Cl2
  8. customThe solvent was evaporated under reduced pressure

Sources & evidence

ORD record
ord-974a0a9392874bb184fb5a37f029953f
Source dataset
uspto-grants-2015_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09174970B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes