Mass spectroscopy. Results: One-pot multi-component condensation of 2-naphthol with arylaldehydes and thioacetamide catalyzed by nano-[DSPECDA][HSO4] under green, mild and solvent-freeconditions led to 1-thioamidoalkyl-2-naphthols in high yields. The nanocatalyst was also used for the preparation of functionalized tetrahydropyridines by the one-pot multi-component reaction of anilines, arylaldehydes
目的和目的:Nano-2-[N',N'-dimethyl-N'-(silica-n-丙基)ethanaminium chloride]-N,N-dimethylaminium bisulfate (nano-[DSPECDA][HSO4])用作一种高效的非均相二氧化硅基纳米结构催化剂,用于合成 1-硫代氨基烷基-2-萘酚和取代的四氢吡啶。 材料与方法:预期产品在温和条件下制备。在这项工作中,合成了三种新型 1-硫代酰胺烷基-2-萘酚和两种新型四氢吡啶衍生物,并通过 IR、1 H 和13 C NMR 和质谱进行了表征。 结果:纳米-[DSPECDA][HSO 4 ] 催化2-萘酚与芳醛和硫代乙酰胺在绿色、温和、无溶剂条件下的一锅多组分缩合反应得到高收率的1-硫代氨基烷基-2-萘酚。该纳米催化剂还用于在无溶剂和温和条件下通过苯胺、芳基醛和乙酰乙酸乙酯的一锅多组分反应制备官能化四氢吡啶。 结论:
NO2-Fe(III)PcCl@C -catalyzed one-pot synthesis of tetrahydropyridine derivatives
efficient, one-pot synthesis of functionalized tetrahydropyridines by multicomponent condensation of ethyl acetoacetate, two equivalents of aromaticaldehyde, and aromatic amine in the presence of a catalytic amount of NO2-Fe(III)PcCl@C is reported. In this way, a series of pharmacologically interesting substitutedpyridine derivatives were obtained in moderate to good yields.
Nano-Mn-[4-Benzyloxyphenyl-salicylaldimine-methylpyranopyrazole-carbonitrile]Cl<sub>2</sub> as a New Schiff Base Complex and Catalyst for the Synthesis of Highly Substituted Tetrahydropyridines
(2021). Nano-Mn-[4-Benzyloxyphenyl-salicylaldimine-methylpyranopyrazole-carbonitrile]Cl2 as a New Schiff Base Complex and Catalyst for the Synthesis of Highly Substituted Tetrahydropyridines. Organic Preparations and Procedures International: Vol. 53, No. 4, pp. 402-412.
Alum as an efficient catalyst for the multicomponent synthesis of functionalized piperidines
作者:Ramneet Kaur、Annah Gupta、Kamal K. Kapoor
DOI:10.1007/s11164-017-2979-3
日期:2017.11
An effective approach to the synthesis of functionalized piperidines via a one-pot multicomponent reaction of aniline, β-ketoester and aldehyde in the presence of alum as an efficient catalyst has been reported. The present procedure offers advantages such as simple workup, short reaction time and offers rapid access to a variety of functionalized piperidines.
Design, preparation and characterization of a new ionic liquid, 1,3-disulfonic acid benzimidazolium chloride, as an efficient and recyclable catalyst for the synthesis of tetrahydropyridine under solvent-free conditions
作者:Mohsen Abbasi
DOI:10.1039/c5ra10699k
日期:——
acid benzimidazolium chloride as a new ionic liquid, is synthesized, and characterized by studying its FT-IR, 1H NMR, 13C NMR as well as massspectra. This ionic liquid is used as an efficient, homogeneous and recyclable catalyst for synthesis of highly functionalized tetrahydropyridine via one-pot multi-component condensation of aromatic aldehydes, ethyl acetoacetate, and anilines under solvent-free
在目前的工作中,合成了作为新型离子液体的1,3-二磺酸苯并咪唑鎓盐,并对其FT-IR,1 H NMR,13 C NMR以及质谱进行了表征。该离子液体用作高效,均质和可回收的催化剂,可通过以下途径合成高度官能化的四氢吡啶在无溶剂条件下,单锅多组分缩合芳族醛,乙酰乙酸乙酯和苯胺。当前的合成路线是一种绿色方案,具有几个优点,例如产品收率高,反应时间短,反应条件温和,化学废物最少,后处理程序容易。此外,该催化剂可以重复使用和回收至少四次而没有明显的活性损失。