微波辅助合成新型吡唑砜及其抗菌评价和时间分辨光致发光研究

IF 2.1 3区 化学 Q3 CHEMISTRY, MULTIDISCIPLINARY
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引用次数: 0

摘要

本文报道了一种高效实用的微波辅助 MMPP 促进的新型吡唑砜的合成方法,该方法由相应的 4-(烷基/环烷基硫基)-1H-吡唑合成。4-(烷基/环烷基硫基)-1H-吡唑与作为氧化剂的六水合双(单过氧邻苯二甲酸)镁(MMPP)反应,可得到相应的 4-(烷基/环烷基磺酰基)-1,3-二取代-1H-吡唑,收率为 85-95%。该方法的优点包括操作简单、工作步骤简便,而且使用的 MMPP 氧化剂价格低廉、不含卤素,易于使用且相当稳定。对所有合成的吡唑砜进行了细菌和真菌菌株的检测,其中一些化合物具有显著的抗菌活性。为了研究将产量最高、抗菌活性最强的化合物与它们的光电特性结合起来的前景,对化合物 5a、5b 和 5d 进行了时间分辨光致发光研究。在这三种情况下,都能在微秒时域观察到可调光谱,发现具有甲基的化合物荧光寿命较长,苯基化合物介于两者之间,而对硝基苯基化合物的荧光寿命最短。由于吡唑砜的结构非常复杂,而且可以广泛获得,因此我们的研究程序将鼓励对吡唑砜的宝贵特性进行更多的研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Microwave-assisted synthesis of novel pyrazolyl sulfones and their antimicrobial evaluation and time-resolved photoluminescence studies

This article reports an efficient and practical microwave-assisted MMPP-promoted synthesis of novel pyrazolyl sulfones from the corresponding 4-(alkyl/cycloalkylthio)-1H-pyrazoles. The reaction of 4-(alkyl/cycloalkylthio)-1H-pyrazoles with magnesium bis(monoperoxyphthalate)hexahydrate (MMPP) as an oxidizing agent afforded the corresponding 4-(alkyl/cycloalkylsulfonyl)-1,3-disubstituted-1H-pyrazoles in 85–95% yield. This method's benefits include its straightforward operation, simple workup, and use of an inexpensive, halogen-free MMPP oxidant that is easy to use and reasonably stable. All synthesized pyrazolyl sulfones were examined against bacterial and fungal strains, and notable antimicrobial activity was demonstrated by a few of the compounds. In order to investigate the prospect of connecting compounds with the highest yield and antimicrobial activity with their opto-electronic properties, time-resolved photoluminescence investigations for compounds 5a, 5b, and 5d were conducted. The tunable spectrum was observed in the micro-second time domain in all three cases, with fluorescent lifetime found higher in the compound having methyl group, intermediate with phenyl group, and lowest with the p-nitrophenyl group. Our procedures will encourage additional research into the valuable properties of pyrazolyl sulfones now that they are widely available with the structural complexity illustrated here.

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来源期刊
Journal of Sulfur Chemistry
Journal of Sulfur Chemistry CHEMISTRY, MULTIDISCIPLINARY-
CiteScore
4.10
自引率
9.10%
发文量
38
审稿时长
6-12 weeks
期刊介绍: The Journal of Sulfur Chemistry is an international journal for the dissemination of scientific results in the rapidly expanding realm of sulfur chemistry. The journal publishes high quality reviews, full papers and communications in the following areas: organic and inorganic chemistry, industrial chemistry, materials and polymer chemistry, biological chemistry and interdisciplinary studies directly related to sulfur science. Papers outlining theoretical, physical, mechanistic or synthetic studies pertaining to sulfur chemistry are welcome. Hence the target audience is made up of academic and industrial chemists with peripheral or focused interests in sulfur chemistry. Manuscripts that truly define the aims of the journal include, but are not limited to, those that offer: a) innovative use of sulfur reagents; b) new synthetic approaches to sulfur-containing biomolecules, materials or organic and organometallic compounds; c) theoretical and physical studies that facilitate the understanding of sulfur structure, bonding or reactivity; d) catalytic, selective, synthetically useful or noteworthy transformations of sulfur containing molecules; e) industrial applications of sulfur chemistry; f) unique sulfur atom or molecule involvement in interfacial phenomena; g) descriptions of solid phase or combinatorial methods involving sulfur containing substrates. Submissions pertaining to related atoms such as selenium and tellurium are also welcome. Articles offering routine heterocycle formation through established reactions of sulfur containing substrates are outside the scope of the journal.
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