Sweidan, NI; El-Abadelah, MM; Nazer, MZ; Voelter, W in [Voelter, Wolfgang] Univ Tubingen, Interfak Inst Biochem, Hoppe Seyler Str 4, D-72076 Tubingen, Germany; [Sweidan, Nuha, I] Univ Petra, Fac Art & Sci, Dept Chem, Amman 961343, Jordan; [El-Abadelah, Mustafa M.; Nazer, Musa Z.] Univ Jordan, Fac Sci, Dept Chem, Amman 11942, Jordan published Selective cyclization modes of methyl 3 ‘-heteroarylamino-2 ‘-(2,5-dichlorothiophene-3-carbonyl)acrylates. Synthesis of model (thienyl) pyrazolo- and triazolo[1,5-alpha]pyrimidines in 2020.0, Cited 23.0. Application In Synthesis of 1H-1,2,4-Triazol-5-amine. The Name is 1H-1,2,4-Triazol-5-amine. Through research, I have a further understanding and discovery of 61-82-5.
Interaction of methyl 3-ethoxy-2-(2,5-dichloro-3-thenoyl)acrylate (I) with 3-aminopyrazole and 3- amino-1,2,4-triazole generated the respective pyrazolo [1,5-alpha]pyrimidine (4) and triazolo[1,5-alpha]pyrimidine (7). The formation of 4 entails selective and consecutive displacement of the 3-ethoxy and methoxy (ester) anions in I by 3-NH2 and 1-NH of 3-aminopyrazole. On the other hand, the formation of 7 implies selective displacement of 3-ethoxy in I by the ring-NH followed by cyclocondensation involving the keto group in I and 3-NH2 of aminotriazole. This latter selective displacement sequence is also followed by 3-amino-5-hydroxypyrazole in its reaction with I. The structures of the new compounds are supported by microanalytical and spectral data.
Application In Synthesis of 1H-1,2,4-Triazol-5-amine. Welcome to talk about 61-82-5, If you have any questions, you can contact Sweidan, NI; El-Abadelah, MM; Nazer, MZ; Voelter, W or send Email.
Reference:
Article; Safari, Niloufar; Shirini, Farhad; Tajik, Hassan; Journal of Molecular Structure; vol. 1201; (2020);,
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics