3-(Trifluoromethyl)benzenethiol → HCID 21162545, compound
Reaction equation
[F:1][C:2]([F:11])([F:10])[C:3]1[CH:4]=[C:5]([SH:9])[CH:6]=[CH:7][CH:8]=1.Br[C:13]1[O:17][CH:16]=[C:15]([C:18]([OH:20])=[O:19])[CH:14]=1>>[F:11][C:2]([F:1])([F:10])[C:3]1[CH:4]=[C:5]([S:9][C:13]2[O:17][CH:16]=[C:15]([C:18]([OH:20])=[O:19])[CH:14]=2)[CH:6]=[CH:7][CH:8]=1Participants
3
Procedure
By the procedure of Example 13, m-trifluoromethylthiophenol (5.59 g., 31.4 mmoles) was reacted with 5-bromofuran-3-carboxylic acid. Isolation according to Example 16 gave crude product (1.0 g.) as a gummy solid. The latter was chromatographed on silica gel with ethyl acetate-1/hexane-5/5% acetic acid as eluant. Clean middle fractions were combined and evaporated to solid product (550 mg.). Recrystallization from hexane gave purified 5-(3-trifluoromethylphenylthio)furan-3-carboxylic acid (310 mg., m.p. 99°-101° C., m/e 288).
Sources & evidence
- ORD record
- ord-aed3dd421508484c878f7bc0428fdf54
- Source dataset
- uspto-grants-1981_08
- Patent number
- US04282246
Reaction notes
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