112723-29-2Relevant academic research and scientific papers
Synthesis of Unsymmetrical Tetraazapentalene Derivatives
Matsumura, Noboru,Tomura, Masaaki,Mori, Osamu,Yoneda, Shigeo
, p. 1065 - 1066 (1987)
The synthesis of unsymmetrical tetraazapentalene derivatives was achieved by the reaction of thiadiazole derivatives (2) with various isothiocyanates.Compounds 2 were easily derived from symmetrical tetraazapentalene derivatives.
Reactions of 2,3-Disubstituted 6,7-Dihydro-5H-2a-thia(2a-SIV)-2,3,4a,7a-tetraazacyclopentindene-1,4(2H,3H)-dithiones with Isothiocyanates and Isocyanates
Tomura, Masaaki,Mori, Osamu,Matsumura, Noboru,Inoue, Hiroo
, p. 221 - 224 (2007/10/02)
12?-Tetraazapentalenes, 2,3-disubstituted 6,7-dihydro-5H-2a-thia(2a-SIV)-2,3,4a,7a-tetraazacyclopentindene-1,4(2H,3H)-dithiones, 1 and 7, reacted with excess alkyl or aryl isothiocyanates and isocyanates to afford mono- and di-alkyl or aryl substituted tetraazapentalene derivatives which have the thiocarbonyl and carbonyl groups.
Synthesis and Structure of 6,7-Dihydro-2,3-disubstituted 5H-2a-Thia(2a-SIV)-2,3,4a,7a-tetraazacyclopentindene-1,4(2H,3H)-dithione
Matsumura, Noboru,Tomura, Masaaki,Mori, Osamu,Tsuchiya, Yuko,Yoneda, Siego,Toriumi, Koshiro
, p. 2419 - 2424 (2007/10/02)
Symmetrical tetraazapentalene derivatives 5 and 6 were synthesized by a convenient one-pot reaction using lithium thioureide/phenacyl chloride/alkyl (or allyl) isothiocyanate system.Unsymmetrical tetraazapentalene derivatives 8 were prepared by the reaction of various isothiocyanates with thiadiazolopyrimidine derivatives 7 which were derived from symmetrical tetraazapentalene derivatives.The structure of 5c was determined by a single crystlal X-ray diffraction.
