Palladium-Catalyzed Arylation of Azole Compounds with Aryl Halides in the Presence of Alkali Metal Carbonates and the Use of Copper Iodide in the Reaction.

DOI PDF Web Site 被引用文献42件 参考文献60件
  • Pivsa-Art Sommai
    Department of Applied Chemistry, Faculty of Engineering, Osaka University
  • Satoh Tetsuya
    Department of Applied Chemistry, Faculty of Engineering, Osaka University
  • Kawamura Yoshiki
    Department of Applied Chemistry, Faculty of Engineering, Osaka University
  • Miura Masahiro
    Department of Applied Chemistry, Faculty of Engineering, Osaka University
  • Nomura Masakatsu
    Department of Applied Chemistry, Faculty of Engineering, Osaka University

書誌事項

タイトル別名
  • Palladium-Catalyzed Arylation of Azole

この論文をさがす

抄録

The reactions of iodobenzene with azole compounds, 1,2-disubstituted imidazoles and 2-substituted oxazoles and thiazoles, were examined in the presence of catalytic amounts of Pd(OAc)2 and PPh3 in DMF using alkali metal carbonates as bases. It was found that the coupling products, 5-arylazoles, could be selectively produced in good yields by using Cs2CO3. In the case that their 2-position is unsubstituted, the site could also be arylated. In reactions using bromobenzene in place of iodobenzene, K2CO3 was also as effective as Cs2CO3. The addition of a stoichiometric amount of CuI appeared to specifically promote the reactions of thiazoles as well as those of thiophene derivatives. The reactions of 2-unsubstituted azole compounds with aryl iodides could be mediated by CuI to some extent without using the palladium species to give 2-arylazoles.

収録刊行物

被引用文献 (42)*注記

もっと見る

参考文献 (60)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ