Triphenylphosphine → (5 Chlorobenzoxazol-2-yl methyl)triphenylphosphonium bromide
Reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[O:9][C:8]([CH2:10][Br:11])=[N:7][C:6]=2[CH:12]=1.[C:13]1([P:19]([C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)[C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1>CC#N.CCOCC>[Br-:11].[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[O:9][C:8]([CH2:10][P+:19]([C:20]3[CH:21]=[CH:22][CH:23]=[CH:24][CH:25]=3)([C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=3)[C:13]3[CH:14]=[CH:15][CH:16]=[CH:17][CH:18]=3)=[N:7][C:6]=2[CH:12]=1Participants
5
Procedure
A solution of the bromide (500 mg) (Step 3) and triphenylphosphine (740 mg) in CH3CN (5 mL) was stirred at room temperature overnight. The reaction mixture was diluted with Et2O (20 mL), stirred for 30 min, and filtered to give the title compound as a white solid.
Workup
- filtrationfiltered
Sources & evidence
- ORD record
- ord-07367f49a302496b9fb474ee9f3acff1
- Source dataset
- uspto-grants-1990_09
- Patent number
- US04957932
Reaction notes
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