63257-52-3Relevant academic research and scientific papers
Ethynyl Carbocations. V. Synthesis and Properties of 4-Phenylethynyl-4H-pyrans
Koblik, A. V.,Murad'yan, L. A.
, p. 245 - 253 (2007/10/03)
A method for preparation of 4-phenylethynyl-4H-pyrans was developed, and their reactions with acid reagents, resulting in 4-phenylethynylpyrylium salts and 1,5-diketones containing ethynyl and allene moieties, were studied.Conditions for nucleophilic addi
REACTIONS OF HETEROCYCLIC CATIONS WITH N-CONTAINING NUCLEOPHILES. 14. RECYCLIZATION OF 2,6-DIPHENYLPYRYLIUM PERCHLORATE UNDER THE INFLUENCE OF NUCLEOPHILES WITH AN N-C-N FRAGMENT
Zvezdina, E. A.,Zhdanova, M. P.,Giryavenko, I. I.
, p. 714 - 719 (2007/10/02)
The recyclization of 2,6-diphenylpyrylium perchlorate under the influence of isothioureas, guanidine, 2-aminobenzimidazoles, 2-aminonaphthimidazole, 2-aminothiazole, 2-aminobenzothiazole, and 2-aminopyridine was studied.The examined reactions lead to monocyclic or condensed pyrimidines.
Reactions of heterocyclic cations with nitrogen-containing nucleophiles. 11. Reaction of 2,6-diphenylpyrylium perchlorate with primary amines, hydrazine, and hydroxylamine
Zvezdina,Popova,Pyshchev,Dorofeenko
, p. 344 - 347 (2007/10/02)
The reaction of 2,6-diphenylpyrylium perchlorate with methylamine and various anilines in acetic acid leads to pyridinium salts; 3,4-bispyridinium perchlorates were obtained in dimethylformamide. The reaction of 2,6-diphenylpyrylium perchlorate with hydrazine and the sodium salt of hydroxylamine leads to 3-phenyl-5-phenacyl-2-pyrazoline and -2-isoxazoline.
