Carbon tetrabromide → HCID 53794214, compound

HRID 427224Notes

Reaction equation

HRID 427224 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 nimol 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 corrosponding chloro compound.

Workup

  1. customAfter 40 min. at rt solvent was removed

Sources & evidence

ORD record
ord-be4143bd73d44898bcf083fef5ed58a2
Source dataset
uspto-grants-2001_11
Patent number
US06312662B1

Reaction notes

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