Comins Daniel L, King Laura S, Smith Emilie D, Février Florence C
Department of Chemistry, North Carolina State University, Raleigh, 27695-8204, USA.
Org Lett. 2005 Oct 27;7(22):5059-62. doi: 10.1021/ol0520469.
[reaction: see text] A variety of novel nicotine derivatives were prepared from (S)-nicotine via a two-step sequence. Addition of a cuprate reagent to an N-acylpyridinium salt of nicotine, followed by aromatization with elemental sulfur, afforded C-4 substituted nicotines in moderate to high yield. Using this method, 4-(dimethylphenylsilyl)nicotine was prepared and oxidized to afford (S)-4-hydroxynicotine.
[反应:见正文] 通过两步反应从(S)-尼古丁制备了多种新型尼古丁衍生物。将铜酸盐试剂加到尼古丁的N-酰基吡啶鎓盐上,随后用元素硫进行芳构化反应,以中等至高产率得到C-4位取代的尼古丁。使用该方法,制备了4-(二甲基苯基甲硅烷基)尼古丁并将其氧化得到(S)-4-羟基尼古丁。