Phosphorus tribromide → 2',5-dichloro-2-[3-(bromomethyl)-5-methyl-4H-1,2,4-triazol-4-yl]benzophenone

HRID 1974135Notes

Reaction equation

[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8](=[O:24])[C:9]1[CH:14]=[C:13]([Cl:15])[CH:12]=[CH:11][C:10]=1[N:16]1[C:20]([CH3:21])=[N:19][N:18]=[C:17]1[CH2:22]O.P(Br)(Br)[Br:26]>>[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8](=[O:24])[C:9]1[CH:14]=[C:13]([Cl:15])[CH:12]=[CH:11][C:10]=1[N:16]1[C:20]([CH3:21])=[N:19][N:18]=[C:17]1[CH2:22][Br:26]

Participants

Reactant 2

HCID 24614Phosphorus tribromide

HCID 64529502',5-Dichloro-2-(3-hydroxymethyl-5-methyl-4H-1,2,4-triazol-4-yl)benzophenone

Product 1

HCID 214886582',5-dichloro-2-[3-(bromomethyl)-5-methyl-4H-1,2,4-triazol-4-yl]benzophenone

Procedure

In the manner given in Example 5, 2',5-dichloro-2-[3-(hydroxymethyl)-5-methyl-4H-1,2,4-triazol-4-yl]benzophenone is treated with phosphorus tribromide to give 2',5-dichloro-2-[3-(bromomethyl)-5-methyl-4H-1,2,4-triazol-4-yl]benzophenone.

Sources & evidence

ORD record: ord-b66e270490d44d73beb722c89dce8d3d
Source dataset: uspto-grants-1976_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04000153

Reaction notes

Loading…