Boron tribromide → HCID 67287579, compound

HRID 922027Notes

Reaction equation

HRID 922027 reaction equation
[CH2:1]([S:3][C:4]1[C:9]([C:10]([NH:12][CH2:13][C:14]2[CH:19]=[CH:18][C:17]([F:20])=[CH:16][C:15]=2[O:21]C)=[O:11])=[C:8]([CH3:23])[CH:7]=[C:6]([N:24]2[CH2:29][CH2:28][O:27][CH2:26][CH2:25]2)[N:5]=1)[CH3:2].B(Br)(Br)Br.C([O-])(O)=O.[Na+]>C(Cl)Cl.CO>[CH2:1]([S:3][C:4]1[C:9]([C:10]([NH:12][CH2:13][C:14]2[CH:19]=[CH:18][C:17]([F:20])=[CH:16][C:15]=2[OH:21])=[O:11])=[C:8]([CH3:23])[CH:7]=[C:6]([N:24]2[CH2:29][CH2:28][O:27][CH2:26][CH2:25]2)[N:5]=1)[CH3:2]

Participants

6

Reactant 3

HCID 25134Boron tribromideHCID 516892Sodium BicarbonateHCID 56962767HCID 56962767, compound

Product 1

HCID 67287579HCID 67287579, compoundYield 40%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 6344DichloromethaneSolvent2×

Procedure

To a cooled solution of 209 mg (0.5 mmol) 2-Ethylsulfanyl-N-[(4-fluoro-2-methoxy-phenyl)-methyl]-4-methyl-6-morpholin-4-yl-pyridine-3-carboxylic acid amide (example 17) in DCM (7 ml) were added dropwise 5 ml (5.0 mmol, 1M in DCM) BBr3 at −50° C. The RM was then allowed to reach 0° C. and stirring was continued at this temperature for 3 h. Then a 1M aq. NaHCO3 sol. (15 ml) was added at 0° C. and the mixture was diluted with MeOH (10 ml) and DCM (10 ml). The layers were separated and the aqueous layer was extracted with EtOAc. The combined organic layers were dried over MgSO4 and concentrated in vacuo. Purification of the residue by CC (hexane/EtOAc 7:3) provided 81 mg (0.2 mmol, 40%) 2-Ethylsulfanyl-N-[(4-fluoro-2-hydroxy-phenyl)-methyl]-4-methyl-6-morpholin-4-yl-pyridine-3-carboxylic acid amide (example 18). [M+H]+ 406.2.

Workup

  1. customto reach 0° C.
  2. customThe layers were separated
  3. extractionthe aqueous layer was extracted with EtOAc
  4. dry with materialThe combined organic layers were dried over MgSO4
  5. concentrationconcentrated in vacuo
  6. customPurification of the residue by CC (hexane/EtOAc 7:3)

Sources & evidence

ORD record
ord-13ee0ad7b75c41f6952dea9d146441a8
Source dataset
uspto-grants-2016_03
Patent number
US09278103B2

Reaction notes

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