| 主权项 |
1. A process for the preparation of a compound of Formula V or a salt thereof wherein R1 is selected from C1-C8-alkyl, R2 is selected from the group consisting of: C1-C8-alkyl, fluorinated C1-C8-alkyl, phenyl, and para substituted phenyl, and Z is cyano or C(O)R, wherein R represents a benzene ring having a halo substituent in none, one or both of the meta positions and having a fluoro, chloro, bromo, iodo, nitro, C1-C8-alkyl, substituted C1-C8-alkyl, hydroxy, C1-C8-alkoxy, substituted C1-C8-alkoxy, C1-C8-alkylamino, or substituted C1-C8-alkylamino substituent in para position, the process comprising a) treating a sulfonimidoquinone of Formula III with a compound of Formula IV in enolic or ketonic tautomeric form, wherein Y is selected from the group consisting of: hydroxy, C1-C2-alkoxy, phenoxy, —OSi(Ra)3 wherein Ra is the same or different and selected from the group consisting of: C1-C4-alkyl and phenyl, —OSO2Rb wherein Rb is unsubstituted or fluorinated C1-C4-alkyl, or phenyl, and —OP(O)(ORc)2 wherein Rc is selected from the group consisting of: C1-C4-alkyl, and phenyl, and Z is as defined above. |
