Trifluoroacetic acid → HCID 22610268, compound
Reaction equation
FC(F)(F)C(O)=O.[F:8][C:9]1[CH:14]=[CH:13][C:12]([C:15]2(O)[CH2:20][CH2:19][C:18](=[O:21])[CH2:17][CH2:16]2)=[CH:11][CH:10]=1.C(=O)(O)[O-].[Na+]>>[F:8][C:9]1[CH:10]=[CH:11][C:12]([C:15]2[CH2:20][CH2:19][C:18](=[O:21])[CH2:17][CH:16]=2)=[CH:13][CH:14]=1Participants
4
Procedure
To 17 ml. of well stirred trifluoroacetic acid, 0.16 g. of 4-(p-fluorophenyl)-4-hydroxycyclohexanone (obtained as in Example 3) is added. At the end of about 5 minutes the mixture is poured into an excess of aqueous sodium bicarbonate solution. The solid material is collected on a filter and recrystallized from petroleum ether to give a 96% yield of 4-(p-fluorophenyl)-3-cyclohexen-1-one melting at 44.5° to 46.5° C.
Workup
- customThe solid material is collected on
- filtrationa filter
- customrecrystallized from petroleum ether
Sources & evidence
- ORD record
- ord-bd450e97b9cf4fa1a50cb4c835ddbf87
- Source dataset
- uspto-grants-1976_06
- Patent number
- US03960961
Reaction notes
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