69730-10-5Relevant academic research and scientific papers
Heterocyclization of 3-(R-amino)-3-methylthio-1-phenylpropenones and 5-benzoyl-6-methylthio-1,2-dihydropyridin-2-ones with 1,2- and 1,3-dinucleophilic reagents
Britsun,Pikun,Ryabitskii,Lozinskii
experimental part, p. 970 - 976 (2012/03/26)
The interaction of 3-(R-amino)-3-methylthio-1-phenylpropenones and 1-alkyl-5-benzoyl-3-ethoxy-carbonyl-6-methylthio-1,2-dihydropyridin-2-ones with N,N- and N,C-1,2- and 1,3-dinucleophiles proceeded regioselectively by [3+2] and [3+3] cyclocondensation with the formation of derivatives of pyrazole, benzimidazo[1,2-a]-pyridine, benzimidazo[1,2-a]pyrimidine, imidazo[1,2-a] pyrimidine, [1,2,4]triazolo[4,3-b]pyridazine, and 6,7-dihydro-2H-pyrazolo[3,4-b] pyridine. The regioselectivity of the reactions carried out was analyzed.
THE REACTIONS OF ISOTHIAZOLIUM SALTS WITH NITROGEN NUCLEOPHILIC REAGENTS
Hassan, Mohamed E.,Magraby, M. A.,Aziz, Magda A.
, p. 1885 - 1892 (2007/10/02)
Isothiazolium salts were allowed to react with a number of nitrogen nucleophiles including ammonia, hydrazine, phenylhydrazine, hydroxylamine, and benzylamine.The products obtained suggest that the position of initial nucleophilic attack is at the sulphur
Studies on the Synthesis of Heterocyclic Compounds. Part VI. The Action of Methyl Salicylate on Some 5-Aminopyrazoles
Daidone, Giuseppe,Plescia, Salvatore
, p. 747 - 750 (2007/10/02)
Some 1-phenyl-3-R-5-aminopyrazoles reacted with methyl salicylate to give N-(1-phenyl-3-R-pyrazol-5-yl)-2-methoxybenzamides (3a,b,c), 1-phenyl-2-methyl-3-R-salicyloilimino-3-pyrazolines (4a,b,c) together with 1-phenyl-3-R-5-methylamino pyrazoles (5a,b,c).The structures of the new compounds 3 and 4 were determined on the basis of analytical and spectroscopic data as well as on the acid hydrolysis products.
