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Short Paper | Special issue | Vol 95, No. 2, 2017, pp.1197-1203
Published online, 24th January, 2017
DOI: 10.3987/COM-16-S(S)69
Synthesis of Cyclic Nigerosylnigerose (CNN) bis-Imidazolium Salts

Susumu Tsuda,* Yuya Komatsu, Yohei Minami, Ryoji Ueda, Shin-ichi Fujiwara, Takanori Iwasaki, Hitoshi Kuniyasu, and Nobuaki Kambe*

*Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan


Cyclic nigerosyl-(16)-nigerose (CNN) monotosylate 1 and CNN ditosylate 2 were prepared and characterized by MALDI-TOF mass and NMR Spectroscopies. CNN bis-imidazolium salts 3 were also obtained by nucleophilic displacement reaction of 2 with imidazoles.