碘化铵促进多组分生成多取代吡啶的反应研究

来源 :中国化学会第十三届全国有机合成化学学术研讨会 | 被引量 : 0次 | 上传用户:zhgrmlshr
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  官能团化的吡啶类化合物广泛存在于天然产物、材料科学以及医药等领域,是许多功能材料分子和生物活性分子的核心骨架结构[1],同时也被用于有机合成中重要的催化剂、有机碱、配体等[2]。近年来,大量利用过渡金属催化肟酯生成吡啶类化合物的方法引起了广泛的关注[3]。至今,很少有报道非金属催化肟酯“一锅法”生成官能团化的吡啶类化合物,因此发展这一类反应具有十分重要的意义,而且其具有降低成本、劳动周期、提高原子经济性等优点。本课题组发展了一类以碘化铵作为添加剂,以苯乙酮肟酯类化合物、苯甲醛类化合物和2,4-二酮类化合物为原料的多组分环化反应,以较好的产率合成了一系列多取代功能团化的吡啶类化合物。该方法具有原料廉价易得、操作简单、原子经济性高等优点,为合成具有生物活性的吡啶类天然产物和药物分子提供了新的思路和方法。
其他文献
The three-component reaction of triphenylphosphine,dialkyl acetylenedicarboxylate and arylideneindan-1,3-dione in dry DME at zero to room temperature resulted in functionalized 4-(triphenyl-λ5-phospha
色满酮(Chromone)又称4-色满酮、苯并二氢吡喃-4-酮,是一种存在于生物体内的苯并杂环类次生代谢产物。色满类化合物在自然界分布广泛,许多生物的次生代谢产物中都含有其基本结构,说明这种结构对于有机体的生命活动具有至关重要的作用。目前为止,诸多植物、海洋生物中发现了色满酮及其苷类化合物,由于α,β-不饱和环酮或内酯极易与生物体内的含巯基的一些肽类(如谷光甘肽)和调节酶发生Michael加成以保
1,5-Benzodiazepines is a class of outstanding organic molecules with a wide array of biological activities and therapeutic functions.Recently,1,5-benzodiazepines and their derivatives have been also r
1,5-Benzodiazepines have been an important pharmacophore in the pharmaceutical industry.These compounds are widely used as antianxiety,anticonvulsant and antibacterial agents[1].Due to their wide rang
Subunits containing carbonrings、 nitrogen heterocycles and spirocyclic structures are common in biologically active molecules.Pyrazolone derivatives,representing an important class of five membered-ri
1,5-Benzodiazepines,very important compounds,are widely used in the last decades as anticonvulsant,antianxiety and hypnotic agents.[1]In recent years,1,5-benzodiazepine and its derivatives have been a
Benzodiazepines form an important class of heterocycles with pharmacological activities and are considered as "privileged" scaffolds in medicinal chemistry.[1]1,5-Benzodiazepines and their derivatives
Aryl sulfides are ubiquitous structural motifs found in numerous pharmaceutically active compounds and medicinally important natural products.Therefore,a variety of methods for the C-S bond constructi
We report a simple,yet efficient metal-free oxidation of secondary benzylic alcohols in the presence of t-butyl hydroperoxide (70% TBHP) with high yields of up to 98%.This type of reaction can be carr
Our group reported the synthesis of 6-substituted phenanthridines via radical reactions of 2-isocyanobiaryls1 and successfully developed cobalt-catalyzed reaction of 2-arylanilines with isocyanides to