Carbon tetrabromide → HCID 53794214, compound

HRID 898102Notes

Reaction equation

HRID 898102 reaction equation
[NH2:1][C:2]1[C:10]2[N:9]=[C:8]([C:11]3[O:15][C:14]([P:16]([O:21][CH2:22][CH3:23])([O:18][CH2:19][CH3:20])=[O:17])=[CH:13][CH:12]=3)[N:7]([CH2:24][CH:25]([CH3:27])[CH3:26])[C:6]=2[C:5]([CH2:28][CH2:29][CH2:30][CH2:31]O)=[CH:4][C:3]=1[F:33].C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C(Br)(Br)(Br)[Br:54]>C(Cl)Cl>[NH2:1][C:2]1[C:10]2[N:9]=[C:8]([C:11]3[O:15][C:14]([P:16]([O:21][CH2:22][CH3:23])([O:18][CH2:19][CH3:20])=[O:17])=[CH:13][CH:12]=3)[N:7]([CH2:24][CH:25]([CH3:27])[CH3:26])[C:6]=2[C:5]([CH2:28][CH2:29][CH2:30][CH2:31][Br:54])=[CH:4][C:3]=1[F:33]

Participants

5

Reactant 3

HCID 11205Carbon tetrabromideHCID 11776TriphenylphosphineHCID 54030908HCID 54030908, compound

Product 1

HCID 53794214HCID 53794214, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a cold (0° C.) solution of 1.0 mmol of 4-amino-7-(4-hydroxybutyl)-5-fluoro-1-isobutyl-2-(2-diethylphosphono-5-furanyl)benzimidazole in 20 mL of CH2Cl2 was added 3.0 mmol of PPh3 and 3.0 mmol of CBr4. After 40 min. at rt solvent was removed and the residue was subjected to chromatography to give 4-amino-7-(4-bromobutyl)-5-fluoro-1-isobutyl-2-(2-diethylphosphono-5-furanyl)benzimidazole. CCl4 gave the corresponding chloro compound.

Workup

  1. customAfter 40 min. at rt solvent was removed

Sources & evidence

ORD record
ord-ae5cd8def3204b95beb38f585f862b91
Source dataset
uspto-grants-2008_04
Patent number
US07351399B2

Reaction notes

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