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Mostrando ítems 21-30 de 106
ALKYL-C VERSUS PHENYL-C REACTIVITY IN UNSYMMETRICAL CYCLOPROPENONES - REACTION OF METHYLPHENYLCYCLOPROPENONE WITH PYRAZOLES
(Pergamon-elsevier Science LtdOxfordInglaterra, 1993)
FACILE SYNTHESIS OF ISOXAZOLES AND PYRAZOLES FROM ß-DIKETOHYDRAZONES
(Sociedad Chilena de Química, 2009)
Síntese e investigação da atividade biológica de pirazóis funcionalizados
(Universidade Federal de Santa MariaBRQuímicaUFSMPrograma de Pós-Graduação em Química, 2006-08-16)
In this work, a method for the synthesis of a series of heterocyclic compounds that preserve the amino group of the starting material, is presented. For this study, a-oxoketene O,N-acetals were obtained from the reaction ...
Engenharia de cristais: estudo conformacional, topológico e energético de t-butilpirazóis e bis-t-butilpirazóis
(Universidade Federal de Santa MariaBrasilQuímicaUFSMPrograma de Pós-Graduação em QuímicaCentro de Ciências Naturais e Exatas, 2019-02-22)
This work presents a proposed crystallization mechanism and conformational study of regioisomers of 5(3)-aryl-3(5)-carboxyethyl-1-(1,1-dimethylethyl)-1H-pyrazole (aryl, 4-X-C6H4, where X = H, F, Cl and Br) and a series of ...
Synthesis, Spectroscopic Studies and X-ray Crystal Structures of New Pyrazoline and Pyrazole Derivatives
(SPRINGER/PLENUM PUBLISHERS, 2011)
The synthesis and characterization of some pyrazoline compounds of 1,3-diketones with hydrazine derivatives, namely, 1-(S-benzyldithiocarbazate)-3-methyl-5-phenyl-5-hydroxypyrazoline (1); 1-(2-thiophenecarboxylic)-3-meth ...
Thermal decomposition of palladium(II) pyrazolyl complexes. Part I
(Elsevier B.V., 2004-08-01)
The thermal behavior of simple and mixed pyrazolyl complexes [PdCl2(phmPz)(2)] (1),[Pd(N-3)(2)(phmPz)(2)] (2), [Pd(SCN)(2)(phmPz)(2)] (3), and [Pd(N-3)(SCN)(phmPz)(2)] (4) (phmPz: 1-phenyl-3-methylpyrazole) has been ...
Thermal decomposition of palladium(II) pyrazolyl complexes. Part I
(Elsevier B.V., 2004-08-01)
The thermal behavior of simple and mixed pyrazolyl complexes [PdCl2(phmPz)(2)] (1),[Pd(N-3)(2)(phmPz)(2)] (2), [Pd(SCN)(2)(phmPz)(2)] (3), and [Pd(N-3)(SCN)(phmPz)(2)] (4) (phmPz: 1-phenyl-3-methylpyrazole) has been ...