Yusuke Takahashi, Yosuke Ashikari, Masahiro Takumi, Yutaka Shimizu, Yiyuan Jiang, Ryosuke Higuma, Susumu Ishikawa, Hodaka Sakaue, Ibuki Shite, Kei Maekawa, Yoko Aizawa, Hiroki Yamashita, Yuya Yonekura, Marco Colella, Renzo Luisi, Toshihiro Takegawa, Chiemi Fujita, Aiichiro Nagaki
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY 2020 5 618 - 622 2020年02月
[査読有り][通常論文] In a flow microreactor, aryllithiums bearing a piperidylmethyl group were generated using nBuLi by precise residence time control and effective temperature control, and then selectively borylated with boronic esters such as 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (BpinOiPr) and trimethyl borate B(OMe)(3) by fast mixing. Moreover, the direct integration with Suzuki-Miyaura cross coupling were successfully achieved to obtain nitrogen-containing biaryl compounds. The present method could be applied for the straightforward synthesis of the key intermediate of a bioactive component bearing a piperidylmethyl-biphenyl framework.