Synthesis 2018; 50(11): 2200-2210
DOI: 10.1055/s-0036-1591972
paper
© Georg Thieme Verlag Stuttgart · New York

Synthesis of 2-Aryl-3-(arylselanyl)imidazo[1,2-a]pyridines: Copper­-Catalyzed One-Pot, Two-Step Se-Arylation of Selenium with Imidazopyridines and Triarylbismuthanes

Kaito Kondo
a   School of Pharmaceutical Sciences, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya 464-8650, Japan   eMail: m-matsu@dpc.agu.ac.jp   eMail: s-yasuik@dpc.agu.ac.jp
,
Mio Matsumura*
a   School of Pharmaceutical Sciences, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya 464-8650, Japan   eMail: m-matsu@dpc.agu.ac.jp   eMail: s-yasuik@dpc.agu.ac.jp
,
Keiko Kanasaki
a   School of Pharmaceutical Sciences, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya 464-8650, Japan   eMail: m-matsu@dpc.agu.ac.jp   eMail: s-yasuik@dpc.agu.ac.jp
,
Yuki Murata
a   School of Pharmaceutical Sciences, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya 464-8650, Japan   eMail: m-matsu@dpc.agu.ac.jp   eMail: s-yasuik@dpc.agu.ac.jp
,
Naoki Kakusawa
b   Faculty of Pharmaceutical Sciences, Hokuriku University, Ho-3 Kanagawa-machi, Kanazsawa 920-1181, Japan
,
Shuji Yasuike*
a   School of Pharmaceutical Sciences, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya 464-8650, Japan   eMail: m-matsu@dpc.agu.ac.jp   eMail: s-yasuik@dpc.agu.ac.jp
› Institutsangaben
This work was supported by the Institute of Pharmaceutical Life Sciences, Aichi Gakuin University and the Special Research Fund from Hokuriku University.
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Publikationsverlauf

Received: 01. Februar 2018

Accepted after revision: 06. März 2018

Publikationsdatum:
12. April 2018 (online)


Abstract

A simple and general method for the synthesis of 2-aryl-3-(arylselanyl)imidazo[1,2-a]pyridines is described. A one-pot, two-step reaction between triarylbismuthanes and diimidazopyridyl diselenides, generated from imidazo[1,2-a]pyridines and Se powder in the presence of CuI and 1,10-phenanthroline, affords 3-selanylimidazopyridines in moderate to excellent yields under aerobic conditions. The reactions proceed efficiently and the selenium and all the aryl groups on bismuth are transferred to the coupling products. Triarylbismuthanes give better results compared to other aryl donors containing elements such as boron, silicon, tin, and iodine.

Supporting Information