Triphenylphosphine → (5-Ethoxy-5-oxopentyl)(triphenyl)phosphanium bromide
Reaction equation
[C:1]1([P:7]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[Br:20][CH2:21][CH2:22][CH2:23][CH2:24][C:25]([O:27][CH2:28][CH3:29])=[O:26]>>[Br-:20].[C:14]1([P+:7]([C:1]2[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=2)([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[CH2:21][CH2:22][CH2:23][CH2:24][C:25]([O:27][CH2:28][CH3:29])=[O:26])[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=1Participants
3
Procedure
The title compound was prepared from triphenylphosphine and ethyl 5-bromovalerate as described in Example 1 in a yield of 74%.
Sources & evidence
- ORD record
- ord-00dd778da6d14c6c97398f63c765a12a
- Source dataset
- uspto-grants-1995_08
- Patent number
- US05445724
Reaction notes
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