混合吡啶在反式N,N ' -双(9-苯基-9-黄杂基)环己烷-1,4-二胺存在下的替代纯化方案

IF 1.7 4区 化学 Q3 CHEMISTRY, MULTIDISCIPLINARY Journal of Inclusion Phenomena and Macrocyclic Chemistry Pub Date : 2021-01-01 DOI:10.1007/s10847-020-01037-3
Benita Barton, Mino R. Caira, Daniel V. Jooste, Eric C. Hosten
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引用次数: 4

摘要

在这篇通讯中,我们揭示了宿主化合物反式N,N ' -双(9-苯基-9-黄杂基)环己烷-1,4-二胺(1,4- dax)具有通过包膜PYR几乎完全纯化2-甲基吡啶(2MP)/吡啶(PYR)和3-甲基吡啶(3MP)/PYR二元混合物的能力,即使这些混合物中PYR含量只有大约30%。例如,当用等摩尔量的两种客体制备这些溶液时,配合物的PYR含量分别高达92.4和96.4%。此外,1,4- dax能够将含有2MP, 3MP和PYR的等摩尔三元混合物通过宿主形成PYR高达87.8%的混合配合物。客人络合。该研究补充了先前提交的反式N,N ' -双(9-苯基-9-黄杂基)环己烷-1,2-二胺(1,2- dax)和反式N,N ' -双(9-苯基-9-硫杂基)环己烷-1,2-二胺(1,2- dat),其中4-甲基吡啶(4MP)和2MP分别是首选的客体溶剂。有趣的是,在这种条件下,反式N,N ' -双(9-苯基-9-硫代杂蒽基)环己烷-1,4-二胺(1,4- dat)没有包合倾向。成功形成的包合物进行了晶体x射线衍射分析,以了解1,4- dax对4MP和PYR的偏好。然而,这些配合物的热分析信息较少。
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Alternative purification protocols of mixed pyridines in the presence of trans-N,N′-bis(9-phenyl-9-xanthenyl)cyclohexane-1,4-diamine

In this communication, we reveal that the host compound trans-N,N′-bis(9-phenyl-9-xanthenyl)cyclohexane-1,4-diamine (1,4-DAX) possesses the ability to purify 2-methylpyridine (2MP)/pyridine (PYR) and 3-methylpyridine (3MP)/PYR binary mixtures by enclathrating PYR almost exclusively, even when such mixtures contained as little as approximately 30% PYR. For example, when these solutions were prepared with equimolar quantities of the two guests, complexes contained as much as 92.4 and 96.4% PYR, respectively. Furthermore, 1,4-DAX was capable of forming a mixed complex with as high as 87.8% PYR from an equimolar ternary mixture containing 2MP, 3MP and PYR through host?guest complexation. This work complements that of trans-N,N′-bis(9-phenyl-9-xanthenyl)cyclohexane-1,2-diamine (1,2-DAX) and trans-N,N′-bis(9-phenyl-9-thioxanthenyl)cyclohexane-1,2-diamine (1,2-DAT), disclosed in a previous submission, where 4-methylpyridine (4MP) and 2MP, correspondingly, were the preferred guest solvents. Interestingly, trans-N,N′-bis(9-phenyl-9-thioxanthenyl)cyclohexane-1,4-diamine (1,4-DAT) showed no inclusion tendencies under such conditions. Successfully-formed inclusion complexes were subjected to crystal X-ray diffraction analyses in order to understand the preference of 1,4-DAX for 4MP and PYR. Thermal analyses of these complexes were, however, less informative.

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来源期刊
Journal of Inclusion Phenomena and Macrocyclic Chemistry
Journal of Inclusion Phenomena and Macrocyclic Chemistry Agricultural and Biological Sciences-Food Science
CiteScore
4.10
自引率
8.70%
发文量
54
期刊介绍: The Journal of Inclusion Phenomena and Macrocyclic Chemistry is the premier interdisciplinary publication reporting on original research into all aspects of host-guest systems. Examples of specific areas of interest are: the preparation and characterization of new hosts and new host-guest systems, especially those involving macrocyclic ligands; crystallographic, spectroscopic, thermodynamic and theoretical studies; applications in chromatography and inclusion polymerization; enzyme modelling; molecular recognition and catalysis by inclusion compounds; intercalates in biological and non-biological systems, cyclodextrin complexes and their applications in the agriculture, flavoring, food and pharmaceutical industries; synthesis, characterization and applications of zeolites. The journal publishes primarily reports of original research and preliminary communications, provided the latter represent a significant advance in the understanding of inclusion science. Critical reviews dealing with recent advances in the field are a periodic feature of the journal.
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