N-heterocyclic carbenes. IV.1synthesis of symmetrical and unsymmetrical imidazolium salts with abietane moiety
作者:V. A. Glushkov、K. A. Arapov、M. S. Kotelev、K. S. Rudowsky、K. Yu. Suponitsky、A. A. Gorbunov、O. A. Maiorova、P. A. Slepukhin
DOI:10.1002/hc.20745
日期:——
12-chloromethyl-dehydroabie-tate reacts with 1-benzyl- and 1-arylimidazoles to give unsymmetrically substituted imidazolium chlorides (1a–i), with abietane moiety. Starting from methyl 12-aminodehydroabietate, symmetrically substituted diterpene-based salts of imidazolinium (4) and imidazolium (5) were synthesized. Anion exchange afforded corresponding (1e·BF4) and (1e·PF6). The new compounds were tested
12-氯甲基-脱氢松香酸甲酯与 1-苄基-和 1-芳基咪唑反应生成不对称取代的咪唑氯化物 (1a-i),带有松香烷部分。从 12-氨基脱氢松香酸甲酯开始,合成了对称取代的基于二萜的咪唑啉 (4) 和咪唑 (5) 盐。阴离子交换得到相应的(1e·BF4)和(1e·PF6)。新化合物作为 Pd 催化的 Suzuki-Miyaura 反应的配体进行了测试。报道了(1e)的分子结构。© 2011 Wiley Periodicals, Inc. 杂原子化学 23:5–15, 2012; 在 wileyonlinelibrary.com 上在线查看这篇文章。DOI 10.1002/hc.20745