Tert-butyl(4-chloro-2-ethynylphenoxy)acetate → HCID 58522083, compound
Reaction equation
FC1C=CC(S(CCC)(=O)=O)=CC=1C#C[Si](C)(C)C.[C:20]([O:24][C:25](=[O:37])[CH2:26][O:27][C:28]1[CH:33]=[CH:32][C:31]([Cl:34])=[CH:30][C:29]=1[C:35]#[CH:36])([CH3:23])([CH3:22])[CH3:21].Br[C:39]1[CH:40]=[C:41]([S:46]([N:49]([CH3:51])[CH3:50])(=[O:48])=[O:47])[CH:42]=[CH:43][C:44]=1[F:45]>>[C:20]([O:24][C:25](=[O:37])[CH2:26][O:27][C:28]1[CH:33]=[CH:32][C:31]([Cl:34])=[CH:30][C:29]=1[C:35]#[C:36][C:39]1[CH:40]=[C:41]([S:46]([N:49]([CH3:50])[CH3:51])(=[O:47])=[O:48])[CH:42]=[CH:43][C:44]=1[F:45])([CH3:23])([CH3:22])[CH3:21]Participants
4
Procedure
Following the general method as outlined in Intermediate 107, starting from (4-chloro-2-ethynyl-phenoxy)-acetic acid tert-butyl ester (Intermediate 3) and 3-bromo-4-fluoro-N,N-dimethylbenzenesulfonamide (Intermediate 138), the title compound was obtained as a colorless oil after purification by flash column chromatography (silica), eluting with cyclohexane containing increasing amounts of EtOAc.