Phosphorus tribromide → N-{1-[4-(bromomethyl)-2,6-dichlorobenzoyl]-1H-pyrrolo[3,2-c]pyridin-4-yl}cyclopropanecarboxamide

HRID 2201890Notes

Reaction equation

HRID 2201890 reaction equation
[Cl:1][C:2]1[CH:24]=[C:23]([CH2:25]O)[CH:22]=[C:21]([Cl:27])[C:3]=1[C:4]([N:6]1[C:14]2[CH:13]=[CH:12][N:11]=[C:10]([NH:15][C:16]([CH:18]3[CH2:20][CH2:19]3)=[O:17])[C:9]=2[CH:8]=[CH:7]1)=[O:5].P(Br)(Br)[Br:29]>ClCCl>[Br:29][CH2:25][C:23]1[CH:24]=[C:2]([Cl:1])[C:3]([C:4]([N:6]2[C:14]3[CH:13]=[CH:12][N:11]=[C:10]([NH:15][C:16]([CH:18]4[CH2:20][CH2:19]4)=[O:17])[C:9]=3[CH:8]=[CH:7]2)=[O:5])=[C:21]([Cl:27])[CH:22]=1

Participants

4

Reactant 2

HCID 24614Phosphorus tribromideHCID 71618677N-{1-[2,6-dichloro-4-(hydroxymethyl)benzoyl]-1H-pyrrolo[3,2-c]pyridin-4-yl}cyclopropanecarboxamide

Product 1

HCID 86720669N-{1-[4-(bromomethyl)-2,6-dichlorobenzoyl]-1H-pyrrolo[3,2-c]pyridin-4-yl}cyclopropanecarboxamide

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A solution of N-{1-[2,6-dichloro-4-(hydroxymethyl)benzoyl]-1H-pyrrolo[3,2-c]pyridin-4-yl}cyclopropanecarboxamide (0.37 mmol) in dichloromethane was cooled to 0° C. and was treated dropwise with phosphorous tribromide (0.74 mmol). The reaction mixture was then stirred at room temperature for about 2 hours, diluted with dichloromethane and washed with saturated sodium bicarbonate solution. The organic layer was separated, dried over anhydrous sodium sulfate and concentrated to get N-{1-[4-(bromomethyl)-2,6-dichlorobenzoyl]-1H-pyrrolo[3,2-c]pyridin-4-yl}cyclopropanecarboxamide as white solid.

Workup

  1. washwashed with saturated sodium bicarbonate solution
  2. customThe organic layer was separated
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-262a1fc811634969a06b4d9b2600ad34
Source dataset
uspto-grants-2016_06
Patent number
US09364466B2

Reaction notes

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