Cyanoacetohydrazide
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Synthesis of New Bis-Iminodihydrofurans
A new synthetic pathway to new bis-iminodihydrofurans is proposed, which involves the synthesis of N-substituted iminodihydrofurans from reaction of iminodihydrofurans with 2-cyanoacetohydrazide and their condensation with tertiary α-hydroxyketones. This sequence of reactions opens the new approach to the synthesis of novel polyheteroconjugated systems cons
J. Braz. Chem. Soc.. Publicado em: 2016-05
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2. Synthesis and Antitumor Evaluation of New Heterocycles Derived from 3-Methyl-2-benzothiazolinone Hydrazone
3-Methyl-2-benzothiazolinone hydrazone condensed with some selected aldehydes to give the corresponding Schiff bases. Cyclizing the obtained Schiff base derivatives with thioglycolic acid afforded the respective thiazolylideneaminothiazolidenones. Condensation of 3-methyl-2-benzothiazolinone hydrazone with ethyl cyanoacetate yielded a mixture of the bishydra
J. Braz. Chem. Soc.. Publicado em: 2015-06
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3. 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
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4. Reaction of β-alkoxyvinyl halomethyl ketones with cyanoacetohydrazide
Este trabalho apresenta a síntese de uma série de treze 1-cianoacetil-5-hidroxi-5-halometil-1H-4,5-diidropirazóis a partir da reação de condensação entre cianoacetohidrazida e 4-alcoxi-3-alquen-2-onas [R³C(O)C(R²)=C(R¹)(OR), onde R³ = CF3, CCl3, CHCl2, CO2Et; R² = H, Me; R¹ = H, Me, Et, Pr, Pentil, c-Hexil, Ph, e R = Me, Et]. Reações de desidr
J. Braz. Chem. Soc.. Publicado em: 2008