p-Fluoronitrobenzene → HCID 20537894, compound
Reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([CH2:8][OH:9])=[N:6][CH:7]=1.ClC1C=CC(C(O)=O)=NC=1.F[C:21]1[CH:26]=[CH:25][C:24]([N+:27]([O-:29])=[O:28])=[CH:23][CH:22]=1>>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([CH2:8][O:9][C:21]2[CH:26]=[CH:25][C:24]([N+:27]([O-:29])=[O:28])=[CH:23][CH:22]=2)=[N:6][CH:7]=1Participants
4
Procedure
Following the procedure of Example 1, 5-chloro-2-pyridinemethanol, prepared from 5-chloropicolinic acid, is reacted with 1-fluoro-4-nitrobenzene to give 5-chloro-2-(4-nitrophenoxy)methylpyridine, which is converted to 5-chloro-2-(4-aminophenoxy)methylpyridine by reduction with iron and ammonium chloride. The 5-chloro-2-(4-aminophenoxy)methylpyridine and 3,4,5,6-tetrahydrophthalic anhydride are reacted to yield the final product N-4-[2-(5-chloropyridyl)methoxy]phenyl-3,4,5,6-tetrahydrophthalimide.
Sources & evidence
- ORD record
- ord-c2c67b221dd5435aa8b1871984c00fdc
- Source dataset
- uspto-grants-1982_06
- Patent number
- US04332944
Reaction notes
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