Tert-butyl(4-chloro-2-ethynylphenoxy)acetate → HCID 58522034, compound
Reaction equation
[C:1]([O:5][C:6](=[O:18])[CH2:7][O:8][C:9]1[CH:14]=[CH:13][C:12]([Cl:15])=[CH:11][C:10]=1[C:16]#[CH:17])([CH3:4])([CH3:3])[CH3:2].[Cl:19][C:20]1[CH:25]=[CH:24][C:23]([S:26]([C:29]([F:32])([F:31])[F:30])(=[O:28])=[O:27])=[CH:22][C:21]=1I>>[C:1]([O:5][C:6](=[O:18])[CH2:7][O:8][C:9]1[CH:14]=[CH:13][C:12]([Cl:15])=[CH:11][C:10]=1[C:16]#[C:17][C:21]1[CH:22]=[C:23]([S:26]([C:29]([F:30])([F:31])[F:32])(=[O:28])=[O:27])[CH:24]=[CH:25][C:20]=1[Cl:19])([CH3:4])([CH3:3])[CH3:2]Participants
3
Procedure
Following the general method as outlined in Intermediate 79, starting from (4-chloro-2-ethynyl-phenoxy)-acetic acid tert-butyl ester (Intermediate 3) and 1-chloro-2-iodo-4-[(trifluoromethyl)sulfonyl]benzene (Intermediate 186), the title compound was obtained as a white solid in 72% yield after purification by flash column chromatography (silica), eluting with cyclohexane containing increasing amounts of EtOAc.
Sources & evidence
- ORD record
- ord-3a297bf9a0804c009ac214cca7f75a1a
- Source dataset
- uspto-grants-2012_09
- Patent number
- US08273769B2
Reaction notes
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