89929-37-3Relevant academic research and scientific papers
Preparation and reactions of 5-Aryl-1,4,2-dithiazolium salts
Yonemoto, Katsumi,Shibuya, Isao,Tsuchiya, Tohru,Masahiko Yasumoto,Taguchi, Yoichi
, p. 2933 - 2937 (2007/10/02)
S-Thioaroylsulfenamides (ArCSSNH2), formed by reaction of ArCSS-Na+ with hydroxylamine-O-sulfonic acid, were aroylated or acylated to give N-aroyl- or N-acyl-S-thioaroylsulfenamides, respectively, which were then cyclized with dehydration to afford 3-substituted 5-aryl-1,4,2-dithiazolium salts. The behavior of 3,5-diphenyl-1,4,2-dithiazolium Perchlorate toward nucleophiles such as active methylene and amino compounds was studied systematically. The reaction can be classified into two cases depending on fission modes of initial adducts, i.e., ring opening-ring closure reaction (Path B) and fragmentation of dithiazole ring (Path C), and in some cases the initial adducts were isolated.
Ring Expansion Reaction of Heterocyclic Cation Compounds by Incorporating One Nitrogen Atom Using I2-NH3 System
Yonemoto, Katsumi,Shibuya, Isao
, p. 89 - 90 (2007/10/02)
The reaction of various heterocyclic cation compounds with I2/NH4OH resulted in ring expansion on nitrogen atom.The similar ring expansion reaction occured on the corresponding triiodides with NH4OH.The reaction mechanism based on initial nucleophilic att
Organic Heterocyclothiazenes. Part 2. Reaction of Tetrasulphur Tetranitride with Phenylacetylene and Diphenylacetylene
Daley, Stephen T. A. K.,Rees, Charles W.
, p. 207 - 210 (2007/10/02)
The reaction of S4N4 with diphenylacetylene in boiling toluene has been found to give 3,4-diphenyl-1,2,5-thiadiazole (1) as the major product and 3,5-diphenyl-1,4,2,6-dithiadiazine (4), a new heterocyclic system, as a minor product.The same reaction with
Reactions of Tetrasulphur Tetranitride with Alkynes; 1,4,2,6-Dithiadiazines and 1,3,2-Dithiazoles
Daley, Stephen T. A. K.,Rees, Charles W.,Williams, David J.
, p. 57 - 59 (2007/10/02)
Reaction of S4N4 with diphenylacetylene and phenylacetylene gives two new, thermally stable heterocyclic systems, the 1,4,2,6-dithiadiazine (3) and the 1,3,2-dithiazolylimine (7), respectively, as minor products; these structures, determined by X-ray diff
