ChemInform Abstract: Overview of Structure, Properties and Derivatives of Boronic Acid

ChemInform ◽  
2015 ◽  
Vol 46 (10) ◽  
pp. no-no
Author(s):  
Aastha Pareek ◽  
Priyanka Rani ◽  
Navneet Kumar ◽  
Pratima Sharma ◽  
D. Kishore
2012 ◽  
Vol 11 (1) ◽  
pp. 73-85
Author(s):  
Martin Hrašna ◽  
Eva Ürgeová ◽  
Alžbeta Krutošíková

Synthesis, Complex Compounds and Antimicrobial Activity of Some Derivatives of Furo[3,2-C]Pyridine and Their Starting CompoundsSome [3,2-c]pyridine derivatives were synthesized. 3-(Furan-2-yl)propenoic acid (1a) was prepared from furan-2-carbaldehyde under the Perkin's conditions. Obtained acid was converted to the corresponding azide3, which in turn was cyclized to give furo[3,2-c]pyridin-4(5H)-one (4a). The reaction of pyridone4awith phosphorus oxychloride rendered the chloroderivative7a, which was treated in the condition of Suzuki coupling reaction with boronic acid to give 4-phenylfuro[3,2-c]pyridine (8e) and an unexpected product10. Some title compounds have shown moderate to good antimicrobial activity against tested bacteriaXanthomonas sp., Erwinia amylovora, and filamentous fungiPyrenophora avenae, Fusarium graminearum.


2017 ◽  
Vol 27 (10) ◽  
pp. 2135-2138 ◽  
Author(s):  
Santi M. Mandal ◽  
Rupa Pegu ◽  
William F. Porto ◽  
Octavio L. Franco ◽  
Sanjay Pratihar

2010 ◽  
Vol 20 (19) ◽  
pp. 5839-5842 ◽  
Author(s):  
Takumi Watanabe ◽  
Hikaru Abe ◽  
Isao Momose ◽  
Yoshikazu Takahashi ◽  
Daishiro Ikeda ◽  
...  

2012 ◽  
Vol 116 (28) ◽  
pp. 14811-14819 ◽  
Author(s):  
Dalius Gudeika ◽  
Asta Michaleviciute ◽  
Juozas V. Grazulevicius ◽  
Ramunas Lygaitis ◽  
Saulius Grigalevicius ◽  
...  

2020 ◽  
Vol 4 (2) ◽  
pp. 3-8
Author(s):  
Bako Bafoevich Umarov ◽  
◽  
Murod Amonovich Tursunov ◽  
Mansur Yarashovich Ergashov

Analysis of the scientific literature shows that data on nitrogenous derivatives of ketoaldehyde and ketoesters, their synthesis, tautomerization and Complexing ability are incomplete, in some cases their coordination compounds remain abstract, which requires special attention. As a result of the study of the electronic and spatial structures of the complex molecules, it became possible to determine the causes of the "composition-structure-properties" relationship of chemical compounds in a much more complex structure. The structure and tautomerization of para-exchange acylgases of ethyl ether of 2,4-dioxopentanoic acid in various solvents are studied in the article. role of Stephen Krashen's ideas in the theory of second language learning


Molecules ◽  
2021 ◽  
Vol 26 (19) ◽  
pp. 5940
Author(s):  
Julia Modrzejewska ◽  
Marcin Szala ◽  
Aleksandra Grzelakowska ◽  
Małgorzata Zakłos-Szyda ◽  
Jacek Zielonka ◽  
...  

Derivatives of coumarin, containing oxidant-sensitive boronate group, were recently developed for fluorescent detection of inflammatory oxidants. Here, we report the synthesis and the characterization of 3-(2-benzothiazolyl)-7-coumarin boronic acid pinacol ester (BC-BE) as a fluorescent probe for the detection of peroxynitrite (ONOO–), with high stability and a fast response time. The BC-BE probe hydrolyzes in phosphate buffer to 3-(2-benzothiazolyl)-7-coumarin boronic acid (BC-BA) which is stable in the solution even after a prolonged incubation time (24 h). BC-BA is slowly oxidized by H2O2 to form the phenolic product, 3-benzothiazol-2-yl-7-hydroxy-chromen-2-one (BC-OH). On the other hand, the BC-BA probe reacts rapidly with ONOO−. The ability of the BC-BA probe to detect ONOO– was measured using both authentic ONOO– and the system co-generating steady-state fluxes of O2•– and •NO. BC-BA is oxidized by ONOO– to BC-OH. However, in this reaction 3-benzothiazol-2-yl-chromen-2-one (BC-H) is formed in the minor pathway, as a peroxynitrite-specific product. BC-OH is also formed in the reaction of BC-BA with HOCl, and subsequent reaction of BC-OH with HOCl leads to the formation of a chlorinated phenolic product, which could be used as a specific product for HOCl. We conclude that BC-BA shows potential as an improved fluorescent probe for the detection of peroxynitrite and hypochlorite in biological settings. Complementation of the fluorescence measurements by HPLC-based identification of oxidant-specific products will help to identify the oxidants detected.


Sign in / Sign up

Export Citation Format

Share Document