Publicação
Synthesis of novel derivatives of a versatile synthon : 4-amino-3-cyanopyrazole
| Resumo: | Diazotisation of substituted arylamines followed by reaction with malononitrile gave substituted arylazomalononitriles. Cyclisation of these intermediates with two carbon sources and base gave the corresponding new 4-amino-3-cyanopyrazoles, in moderate yields. In one case the corresponding oxo-pyrazolopyrimidine was prepared. |
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| Autores principais: | Rodrigues, Lígia M. |
| Outros Autores: | Campos, Ana M. F. Oliveira; Kaja, Martin; Hrdina, Radim |
| Assunto: | Cyanopyrazole Oxo-pyrazolopyrimidine Pyrazole |
| Ano: | 2004 |
| País: | Portugal |
| Tipo de documento: | comunicação em conferência |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| Resumo: | Diazotisation of substituted arylamines followed by reaction with malononitrile gave substituted arylazomalononitriles. Cyclisation of these intermediates with two carbon sources and base gave the corresponding new 4-amino-3-cyanopyrazoles, in moderate yields. In one case the corresponding oxo-pyrazolopyrimidine was prepared. |
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