Bicyclic imidazoles for modular synthesis of chiral imidazolium salts.
The preparation of new chiral bicyclic imidazoles 5 and their transformation into imidazolium salts 6 and 7 are reported. The utility of the salts as precursors for chiral N-heterocyclic carbenes was demonstrated by the synthesis of C-N-C pincer Ni-complex 13h, the structure of which was characterized by single-crystal X-ray analysis.
Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan. kyoshida@faculty.chiba-u.jp
Kazuhiro
K
Yoshida
Shingo
S
Horiuchi
Tomoko
T
Takeichi
Hiroaki
H
Shida
Tsuneo
T
Imamoto
Akira
A
Yanagisawa