96043-47-9Relevant 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
Synthesis of 1,4,2,5-Dithiadiazines, a New Heterocyclic System, from Aminosulphines (Thioamide S-Oxides)
Lenz, Bodo G.,Zwanenburg, Binne
, p. 1386 - 1387 (2007/10/02)
Treatment of aryl aminosulphines (thiobenzamide S-oxides) with either Et3O+BF4- or SOCl2, followed by base, leads to 1,4,2,5-dithiadiazines.
