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2005
Imidazole derivatives
R 0190
Synthesis of Trisubstituted Imidazoles by Palladium-Catalyzed Cyclization of
Application to Amino Acid Mimetics with
27- 126 O-Pentafluorobenzoylamidoximes:
a C-Terminal Imidazole. — A new methodology is developed for the synthesis of
1-benzyl-4-methylimidazoles with a range of substituents at the 2-position. The procedure is based on a palladium- mediated amino Heck reaction of an amidoxime, derived
from the corresponding aldehyde. The sequence is simple and efficient and can be applied to the preparation of optically active amino acid mimetics containing a C-terminal
imidazole. — (ZAMAN, S.; MITSURU, K.; ABELL*, A. D.; Org. Lett. 7 (2005) 4,
609-611; Dep. Chem., Univ. Canterbury, Christchurch, N. Z.; Eng.) — Steudel
2005
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