Pronounced activity of aromatic selenocyanates against multidrug resistant ESKAPE bacteria
作者:Muhammad Jawad Nasim、Karolina Witek、Annamária Kincses、Ahmad Yaman Abdin、Ewa Żesławska、Małgorzata Anna Marć、Márió Gajdács、Gabriella Spengler、Wojciech Nitek、Gniewomir Latacz、Elżbieta Karczewska、Katarzyna Kieć-Kononowicz、Jadwiga Handzlik、Claus Jacob
DOI:10.1039/c9nj00563c
日期:——
Gram-positive and Gram-negative bacteria and yeasts, including multidrugresistant strains. The results obtained so far demonstrate that these arylmethyl selenocyanates are also non-mutagenic and have limited cytotoxicity against human cells. Here, benzyl selenocyanate (1) represents the most active anti-ESKAPE agent, with potent activityagainstmultidrugresistant MRSA strains (HEMSA 5) – with a competitive
Selenonium Salt as a Catalyst for Nucleophilic Substitution Reactions in Water: Synthesis of Thiocyanites and Selenocyanates
作者:Alix Y. Bastidas Ángel、Philipe Raphael O. Campos、Eduardo E. Alberto
DOI:10.3390/molecules28073056
日期:——
interconversion and due to their biological activities. In this contribution, we report the synthesis of a series of these important substances in a mixture of water and dimethyl carbonate (20/1 proportion) using potassium thio- or selenocyanates salts and organic bromides. The key to the effectiveness of the reaction is a chalcogen bond interaction between a selenonium salt catalyst and the organic substrate
Available online-1-n-butyl-3-methylimidazolium selenocyanate ([bmim][SeCN]) proved to be a very efficient reagent for selenocyanation of alkyl halides. As part of an eco-friendly process, no organic solvents were used during the transformation and reaction times are reduced by using microwave as a heating source. The ionicliquid was carefully recycled in two different ways. Selenocyanate compounds
Synthesis of Selenium Derivatives using Organic Selenocyanates as Masked Selenols: Chemical Reduction with Rongalite as a Simpler Tool to give Nucleophilic Selenides
作者:Willber Castro-Godoy、adrian A heredia、Lydia M Bouchet、Juan E. Elias Argüello、Adrian A. Heredia、Juan E. Argüello
DOI:10.1002/cplu.202400183
日期:——
The chemical reduction of alkyl, aryl, and benzyl selenocyanates, as masked selenols, using Rongalite is investigated. As a result, the corresponding diselenides were obtained selectively in very good to excellent yields. Additionally, a simple methodology is described using the in-situ generated benzyl selenolate anion to promote nucleophilic substitution, epoxide ring opening, and Michael addition