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Your search keyword '"Weglewski, A"' showing total 12 results
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12 results on '"Weglewski, A"'

1. ChemInform Abstract: Synthesis and Bactericidal Properties of Pyridinium Chlorides with Alkylthiomethyl and Alkoxymethyl Hydrophobic Groups

Author

J. Krysinski, Jozef Weglewski, and Juliusz Pernak

Subjects
chemistry.chemical_classification, chemistry.chemical_compound, chemistry, Serial dilution, Sulfide, Alkoxy group, High activity, Ether, General Medicine, Pyridinium, Medicinal chemistry
Abstract

The products of a reaction between 3-ethoxymethylpyridine and chloromethylalkyl ether or sulfide were proven to be 1 -[(alkylthio)- methyl]-3-[(ethoxy)methyl]pyridinium or 1 -[(alkoxy)methyl]-3-[(ethoxy)- methyl]pyridinium chlorides. Bacteriostatic properties of the obtained chlorides against 13 different microbial strains representing cocci, rods, fungi, and bacilli were studied. The MICs were measured by serial dilution. All studied chlorides showed bacteriostatic properties. Particularly high activity against microbes was shown by 1-[(dodecylthio)- methyl]-3-[(ethoxy)methyl]pyridinium and 3-[(ethoxy)methyl]-1-[(tetradecylthio)methyl]pyridinium chlorides.

Published
2010
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4. ChemInform Abstract: Reaction of Phenolic Mannich Base with Trialkyl Phosphite

Author

Jozef Weglewski, Juliusz Pernak, and Radoslaw Kmiecik

Subjects
chemistry.chemical_compound, Chemistry, Yield (chemistry), Reagent, Organic chemistry, Phenol, Ammonium, General Medicine, Mannich base, Methiodide, Benzene
Abstract

Dialkyl [2-hydroxy-5-(phenylazo)benzyl]phosphonates were prepared by a convenient procedure in good yield from Mannich base and trialkyl phosphite in benzene with the elimination of ammonium or morpholinium cation. 2-[(Dialkylamino)methyl]-4-(phenylazo)phenol methiodide is a new reagent in the Michaelis-Arbuzov reaction.

Published
2010
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