Synthesis of Trisubstituted Imidazoles by Palladium-Catalyzed Cyclization of O-Pentafluorobenzoylamidoximes: Application to Amino Acid Mimetics with a C-Terminal Imidazole
摘要:
1-Benzyl-4-methylimidazoles with a range of substituents at the 2-position are prepared from O-pentafluorobenzoylamidoximes on treatment with catalytic amounts of Pd(PPh3)(4) and triethylamine. The sequence provides access to optically active amino acid mimetics with a C-terminal imidazole.
Synthesis of Trisubstituted Imidazoles by Palladium-Catalyzed Cyclization of O-Pentafluorobenzoylamidoximes: Application to Amino Acid Mimetics with a C-Terminal Imidazole
摘要:
1-Benzyl-4-methylimidazoles with a range of substituents at the 2-position are prepared from O-pentafluorobenzoylamidoximes on treatment with catalytic amounts of Pd(PPh3)(4) and triethylamine. The sequence provides access to optically active amino acid mimetics with a C-terminal imidazole.