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An efficient two-step synthesis of novel 2-amino-ubstituted pyrazolo[1,5-a][1,3,5]triazines

Insuasty, Henry Y Insuasty, Braulio Y Castro, Edison Y Quiroga, Jairo Y Abonía, Rodrigo (2013) An efficient two-step synthesis of novel 2-amino-ubstituted pyrazolo[1,5-a][1,3,5]triazines. Tetrahedron Letters, 54 (-). pp. 1722-1725. ISSN 0040-4039

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A series of novel 2-amino-substituted pyrazolo[1,5-a][1,3,5]triazines were selectively synthesized by a two-step reaction between 5-amino-3-hetaryl-1H-pyrazoles and hetaroyl isothiocyanates with subsequent amination and cyclization promoted by the couple HgCl2/TEA and DMF as solvent. This approach provided the title compounds in good to excellent yields and under mild reaction conditions. The structures of the new compounds were unambiguously established by spectroscopic and analytical techniques

Tipo de Elemento: Artículo
Palabras Clave: 5-Amino-1H-pyrazoles Pyrazolo[1,5-a][1,3,5]triazines Pyrazolylthioureas Guanylation Nucleophilic amination Mercury(II) chloride
Asunto: Q Ciencias > QD Chemistry
Division: Facultad de Ciencias Exactas y Naturales > Programa de Química > Productividad
Depósito de Usuario: doctor HENRY INSUASTY
Fecha Deposito: 31 Jan 2017 22:43
Ultima Modificación: 31 Jan 2017 22:54

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