Highly functionalized fluorenones were synthesized by an intramolecular cyclization of 2′′-halo-[1,1′:3′,1′′-terphenyl]-4′-carbonitriles in the presence of n-butyllithium or lithium aluminium hydride. The precursor was synthesized by ring transformation of 2-oxo-6-aryl/heteroaryl-4-(sec.amino)-2H-pyran-3-carbonitriles or 2-oxobenzo[h]chromenes with o-bromo/chloro/fluoro-acetophenone under basic conditions
在
正丁基锂或
氢化铝锂的存在下,通过分子内环化2''-卤代-[1,1':3',1''-三
联苯] -4'-腈来合成高度官能化的
芴酮。通过将2-氧代-6-芳基/杂芳基-4-(仲
氨基)-2 H-
吡喃-3-甲腈或2-氧代苯并[ h ]色烯与邻-
溴/
氯/
氟环转移来合成前体-
苯乙酮在碱性条件下产率中等。我们进行了对照实验,以了解所提出的机理,并发现起始原料中仲胺的存在指导反应性。3-甲氧基-7-(
哌啶-1-基)-5 H-
茚三酮[2,1- b]的光物理性质探索了] phenanthren-8(6 H)-one并观察到溶剂依赖性发射。还测试了这些化合物的抗HIV-1活性,并观察到低至中等的活性。