Generation and Reactions of Vinyllithiums Using Flow Microreactor Systems

Journal of Flow Chemistry - Tập 2 - Trang 70-72 - 2012
Aiichiro Nagaki1, Yusuke Takahashi1, Shigeyuki Yamada1, Chika Matsuo1, Suguru Haraki1, Yuya Moriwaki1, Songhee Kim1, Jun-ichi Yoshida1
1Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, Japan

Tóm tắt

Vinyllithiums were effectively generated by bromine-lithium exchange reaction of vinyl bromides with one eq of s-BuLi in a flow microreactor system at 0 °C or 20 °C, although two eq of t-BuLi and much lower temperatures are required for a conventional macro batch reaction. Subsequent reactions with various electrophiles in the flow microreactor system gave the corresponding vinyl compounds in good yields.

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