Allyltributylstannane → 7-Allyl-2-(3-fluoro-4-hydroxyphenyl)benzo[d]oxazol-5-ol
Reaktionsgleichung
Br[C:2]1[C:10]2[O:9][C:8]([C:11]3[CH:16]=[CH:15][C:14]([O:17]C)=[C:13]([F:19])[CH:12]=3)=[N:7][C:6]=2[CH:5]=[C:4]([O:20]C)[CH:3]=1.[CH2:22]([Sn](CCCC)(CCCC)CCCC)[CH:23]=[CH2:24]>>[CH2:24]([C:2]1[C:10]2[O:9][C:8]([C:11]3[CH:16]=[CH:15][C:14]([OH:17])=[C:13]([F:19])[CH:12]=3)=[N:7][C:6]=2[CH:5]=[C:4]([OH:20])[CH:3]=1)[CH:23]=[CH2:22]Komponenten
3
Versuchsvorschrift
The title compound was prepared in substantially the same manner as described in Example 24, Route c, step b, from 7-bromo-2-(3-fluoro-4-methoxyphenyl)-5-methoxy-1,3-benzoxazole, allyltributyltin and dichlorobis(tri-o'tolylphosphine)palladium, followed by demethylation according to Example 20, step e. The desired product was obtained as a light pink solid, m.p. 169–171° C.; MS m/e 284 (M−H)+.
Aufarbeitung
- customThe title compound was prepared in substantially the same manner