cycloaddition reactions of a series of functionalized pyridinium salts, which were generated from reaction of pyridine with active alkyl halides such as p-nitrobenzyl bromide, N,N-diethyl chloroacetamide and phenacyl bromides with 3-phenacylideneoxindoles in the presence of triethylamine showed very interesting molecular diversities. A series of the functionalized spiro[cyclopropane-1,3′-indolines], and 3-
在
三乙胺的存在下,
吡啶与活性烷基卤化物(如对硝基苄基
溴,N,N-
二乙基氯乙酰胺和
苯甲酰溴与3-苯乙叉基氧
吲哚)反应生成的一系列官能化
吡啶鎓盐的环加成反应显示出非常有趣的结果。分子多样性。根据
吡啶鎓盐的结构和反应条件,成功制备了一系列官能化的
螺[环丙烷-1,3'-二氢吲哚]和3-
呋喃-3(2 H)-亚烷基)
吲哚-2-酮。简要讨论了反应的区域选择性和立体选择性以及反应机理。