Bipyridyl Functionalized NHC-Sulfenyl, Selenenyl Cations; Potential Species for Alkylation Reactions and Ligands in Copper(I) Catalysis.

Reactions of bipyridyl-functionalized imidazole-thiones and selones with MeX (X=I, OTf) afforded sulfenyl and selenenyl cations [(NNC)EMe]X (2/3, E=S, Se). Further reactions of these main-group cations with [Cu(CHCN)]BF, Cu(OTf) furnished dicationic [{Cu(μ-I)(NNC)EMe}][Y] (5/6, Y=BF, OTf) and tricationic copper(I) complexes [Cu{(NNC)EMe}](OTf)BF (7 a/7 b) when employed [(NNC)EMe]I and [(NNC)EMe]OTf respectively. All these cationic complexes were characterized by various spectroscopic techniques, including X-ray diffraction analysis.

NHC Ligand-Enabled Cu(I)-Catalyzed Double Hydroamination: A Regio- and Chemoselective Bicyclization of -Amino 1,6-Diyne.

In this work, we have developed an efficient method for the intramolecular double hydroamination of aniline by employing -amino 1,6-diyne as a potential starting material. This protocol enables easy access to bioactive motif 3,4-dihydro-1-[1,4]oxazino[4,3-]indole through an intramolecular cascade bicyclization and concomitant isomerization pathway in one pot. This transformation has been effectively achieved by utilizing a stereoelectronically tuned, π-accepting NHC-supported copper(I) system.

Prevalence of Extended-Spectrum β-Lactamases (ESBLs) Producing spp. Isolated from (Lamark, 1819) of Sewage-Fed Wetland: A Phenotypic and Genotypic Approach.

The global rise of zoonotic bacteria resistant to multiple antimicrobial classes and the growing occurrence of infections caused by spp. resistant to β-lactam antibiotics pose a severe threat to animal and human health. However, the contribution of natural environments, particularly aquatic ecosystems, as ideal settings for the development and spread of antimicrobial resistance (AMR) is a key concern.

Bark Powder as a Potential Immunomodulator in : Enhanced Hematological, Adaptive, and Humoral Responses against Bacterial Pathogens and Concordant Liver Histomorphology.

This study investigated the dietary immunomodulatory effects of bark powder (TABP) in , a freshwater fish model. Four iso-nitrogenous and iso-caloric diets containing graded levels of TABP (0, 1, 10, and 15 g/kg were fed to fish for 90 days, followed by a 10 day challenge with pathogenic bacteria and . An integrated biomarker response (IBR) approach assessed the impact of TABP on hematological, adaptive, and humoral immune parameters, along with liver histomorphology.

New cationic coinage metal complexes featuring silyl group functionalized phosphine: syntheses, structures and catalytic studies in alkyne-azide cycloaddition reactions.

A series of coinage metal complexes bearing rarely explored -silylated phosphine is reported. The treatment of diphenyl(2-(trimethylsilyl)phenyl)phosphine (1) with CuCl and [Cu(CHCN)]BF furnished the corresponding neutral [(1)CuCl] (2) and mono-cationic [(1)Cu(CHCN)]BF (3) complexes, respectively. The reactions of 1 with AgX (X = BF, NO) in 2 : 1 ratio furnished the corresponding mono cationic dicoordinate silver(I) complexes of the type [(1)Ag]X (X = BF (4a), NO (4b)).

Dicationic copper(I) complexes bearing ENE (E = S, Se) pincer ligands; catalytic applications in regioselective cyclization of 1,6-diynes.

Two novel dicationic binuclear Cu(I) complexes of the type [{(BPPP)E}Cu][BF] (E = S (3a); Se (3b)) bearing (BPPP)E (BPPP = bis(diphenylphosphino)pyridine) pincer systems were isolated, and structurally characterized. The solid-state structures of 3a/3b display the presence of intermolecular cuprophilic (Cu⋯Cu) interactions between the two monocationic species, and consist of weak Cu⋯S bonding between the two cations. Besides, complex 3a was introduced as a molecular copper(I) catalyst in cyclization reactions, and new protocols were developed for the synthesis of a series of new oxazole and triazole derivatives bearing alkyne-phenyl propargylic ether substituents.

Immunogenic Effects of Bark Powder in , a Fish Model: Elucidated by an Integrated Biomarker Response Approach.

Utilizing agro-industrial waste and herbal products to create a circular bioeconomy is becoming increasingly popular. is a significant ethnomedicinal plant that has not yet been exploited in animal feed. In the present study, nutritional bark powder-based fish feed was created and supplied to a candidate fish species at varied levels: 0% (0 g/kg), 0.

Isopod parasite, Milne Edwards, 1840 infestation in Wongratana, 1983, as a first record from Narmada estuary, West Coast of India.

The study reported as a new host of isopod infestation. Furthermore, the record of from the Narmada estuary is of first kind in the West Coast of India. commonly known as slender thryssa forms an important commercial fish species at Bhadbhut, a part of the Narmada estuary.

Genetic differentiation in Indian Major Carp, Cirrhinus mrigala (Hamilton, 1822) from Indian Rivers, as revealed by direct sequencing analysis of mitochondrial Cytochrome b region.

A 307 bp segment of Cytochrome b gene of mtDNA was sequenced and analyzed for 90 individuals of Cirrhinus mrigala collected across the three rivers, namely Ganges, Narmada and Brahmaputra. Analyses revealed the presence of 14 haplotypes with haplotype diversity (h) ranging from 0.304 to 0.