Anticorrosive properties of N-acetylmethylpyridinium bromides
作者:R. I. Yurchenko、I. S. Pogrebova、T. N. Pilipenko、T. E. Shubina
DOI:10.1134/s1070427206070111
日期:2006.7
The inhibiting action of N-acetylmethylpyridinium bromides on the corrosion of low-carbon steel in a 3 M sulfuric acid solution at 20, 40, 60, and 80 degrees C was studied. The mechanism of their protective action was examined using electrochemical methods. Compounds exhibiting high anticorrosive properties at elevated temperatures were found.
Transformations of 1-[2-(Adamantan-1-Yl)-2-Hydroxyethyl]-1,2,3,6-Tetrahydropyridines by the Action of Trifluoromethanesulfonic Acid
作者:Vera А. Shadrikova、Evgeny V. Golovin、Victor B. Rybakov、Yuri N. Klimochkin
DOI:10.1007/s10593-020-02747-9
日期:2020.7
1-[2-(Adamantan-1-yl)-2-hydroxyethyl]-1,2,3,6-tetrahydropyridines were obtained by reduction of 1-[(adamantan-1-yl)-2-oxoethyl]-pyridinium bromides. By the action of trifluoromethanesulfonicacid, they undergo carbocationic intramolecular cyclization accompanied by the Wagner–Meerwein rearrangement with the formation of substituted 1-azabicyclo[3.3.1]non-3-enes annulated with the homoadamantane framework