Cianoacetoidrazida
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1. REAÇÕES DE CICLOCONDENSAÇÃO DE CIANOACETOIDRAZIDA COM ENONAS HALOMETIL-SUBSTITUÍDAS / CYCLOCONDENSATION REACTIONS OF CYANOACETOHYDRAZIDE WITH HALOMETHYL-SUBSTITUTED ENONES
The synthesis of thirteen 3-(R1), 4-(R2) and 5-(R3)-substituted 1-cyanoacetyl-5-hydroxy-4,5-dihydro-1H-pyrazoles from the cyclocondensation reaction of 4-alkoxy-3-alken-2-ones [R3C(O)C(R2)=C(R1)(OR), where R3 = CF3, CCl3, CHCl2, CO2Et; R2 = H, Me; R1 = H, Me, Et, Pr, Pentyl, c-Hexyl, Ph, and R = Me, Et] with cyanoacetohydrazide is reported. This reaction was
Publicado em: 2008