94835-57-1Relevant academic research and scientific papers
CYCLIZATION OF N1-(CINNAMYL-THIOCARBAMOYL)-AMIDRAZONES. PART I
Strzemecka, Leokadia
, p. 157 - 166 (2007/10/02)
The cyclization of N1-(cinnamyl-thiocarbamoyl)-amidrazones 1-3 with diluted and concentrated hydrochloric acid has been studied.Heterocyclic systems od 1,2,4-triazole A, 1,3,4-thiadiazole B, 1,2,4-triazole1,3-thiazine C and 1,3,4-thiadiazolepyrimidine D were obtained in good yields.Compounds 1-3 with diluted hydrochloric acid afforded systems A and B.Compound 1 yielded both heterocyclic systems 1A and 1B, whereas compounds 2, 3 yielded 2B, 3B only.The cyclization reaction of 1-3 with concentrated hydrochloric acid afforded the corresponding heterocyclic systems: 1C; 2C, 2D; 3B, 3C, 3D.The structure of the obtained compounds were proved by means of 1H NMR spectra.
CYCLIZATION REACTION OF 1,4-DISUBSTITUTED THIOSEMICARBAZIDES. PART I
Strzemecka, Leokadia,Otto, Teresa
, p. 757 - 766 (2007/10/02)
The cyclization reaction of 1-acyl(aroyl)-4-cinnamyl-thiosemicarbazides 1-7 with hydrochloric acid was carried out.Four various heterocyclic systems were obtained.Compounds 2-5 under cyclization form the 1,2,4-triazolo-1,3-thiazine system 2-5B.Comp
SYNTHESIS OF 5H-3,7-DISUBSTITUTED 6,7-DIHYDRO-1,2,4-TRIAZOLE1,3-THIAZINE AND 7H-2,5-DISUBSTITUTED 5,6-DIHYDRO-1,2,4-TRIAZOLE1,3-THIAZINE SYSTEMS
Strzemecka, Leokadia
, p. 881 - 886 (2007/10/02)
The cyclization reaction of 3-substituted 4-cinnamyl-1,2,4-triazole-5-thiones was investigated.Formation of isomeric 1,2,4-triazole1,3-thiazine and 1,2,4-triazole1,3-thiazine systems has been observed.The structure of the compounds obtained
