Heteroarylation of 1-Azulenyl Methyl Sulfide: Two-Step Synthetic Strategy for 1-Methylthio-3-(heteroaryl)azulenes Using the Triflate of<i>N</i>-Containing Heterocycles
作者:Junya Higashi、Taku Shoji、Shunji Ito、Kozo Toyota、Masafumi Yasunami、Noboru Morita
DOI:10.1002/ejoc.200800733
日期:2008.12
certain reaction conditions. Treatment of the 1-methylthio-3-(dihydroheteroaryl)azulenes with KOH or tBuOK afforded the corresponding 1-methylthio-3-(heteroaryl)azulenes in good yields. The redox behavior of these 1-methylthio-3-(heteroaryl)azulenes was examined by cyclic voltammetry and differential pulse voltammetry.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)
1-Azulenylmethyl sulfide 与 N-杂环的高亲电性三氟甲磺酸盐(即吡啶、异喹啉、1,10-菲咯啉、苯并噻唑、喹啉和吖啶)反应,以良好的收率得到 1-甲硫基-3-(二氢杂芳基)芘烯. 在与吡啶的三氟甲磺酸盐反应的情况下,在一定的反应条件下直接得到1-甲硫基-3-吡啶基芴。用 KOH 或 tBuOK 处理 1-甲硫基-3-(二氢杂芳基) azulenes,以良好的产率得到相应的 1-甲硫基-3-(heteroaryl) azulenes。这些 1-甲硫基-3-(杂芳基)芘烯的氧化还原行为通过循环伏安法和微分脉冲伏安法检测。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)