3,5-Bis-trifluoromethylphenylboronic acid → (E)-ethyl 3-(3',5'-bis-trifluoromethyl-biphenyl-4-yl)-but-2-enoate
Reaction equation
I[C:2]1[CH:7]=[CH:6][C:5](/[C:8](/[CH3:15])=[CH:9]/[C:10]([O:12][CH2:13][CH3:14])=[O:11])=[CH:4][CH:3]=1.[F:16][C:17]([F:32])([F:31])[C:18]1[CH:19]=[C:20](B(O)O)[CH:21]=[C:22]([C:24]([F:27])([F:26])[F:25])[CH:23]=1>>[F:16][C:17]([F:31])([F:32])[C:18]1[CH:19]=[C:20]([C:2]2[CH:7]=[CH:6][C:5](/[C:8](/[CH3:15])=[CH:9]/[C:10]([O:12][CH2:13][CH3:14])=[O:11])=[CH:4][CH:3]=2)[CH:21]=[C:22]([C:24]([F:25])([F:26])[F:27])[CH:23]=1Participants
3
Procedure
The colourless solid, (E)-ethyl 3-(3′,5′-bis-trifluoromethyl-biphenyl-4-yl)-but-2-enoate was prepared from (E)-ethyl 3-(4-iodophenyl)-but-2-enoate (example 91a) and 3,5-bis-(trifluoromethyl)phenyl boronic acid by a procedure analogous to that described in example 91b.
Sources & evidence
- ORD record
- ord-891e02958101498591c0cf32887998ab
- Source dataset
- uspto-grants-2005_03
- Patent number
- US06867218B2
Reaction notes
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