Producción Científica Profesorado

Polycyclic ferrocenyl-4,5-dihydropyrazoles in nucleophilic reactions with ?-dicarbonyl compounds



Alvarado Rodríguez, José Guadalupe

2003

Polycyclic ferrocenyl-4,5-dihydropyrazoles in nucleophilic reactions with beta-dicarbonyl compounds Elena I. Klimova, Tatiana Klimova, Marcos Martínez García, Eduardo A. Vázquez López, Rafael Moreno Esparza, José G. Alvarado Rodríguez, Teresa Ramírez Apan Journal of Organometallic Chemistry (2003), 665, 69-75. http://dx.doi.org/10.1016/S0022-328X(02)02064-8


Abstract


Polycyclic ferrocenyldihydropyrazoles with a free ?NH group react with ethyl acetoacetate and acetylacetone to give the corresponding enamino carbonyl compounds isolated as E-isomers. The spatial structure of (E)-4-[1-(ethoxycarbonyl)prop-2-en-2-yl]-3-ferrocenyl-1,4,5-triazatricyclo[5.2.2.02,6]undec-5-ene was determined using X-ray diffraction analysis. Spontaneous isomerization of (E)-(4-oxopent-2-en-2-yl)(ferrocenyl)dihydropyrazoles into the respective Z-isomers was observed.






Artículos relacionados

Mild Oxidation of C?C Bonds of Benzoiridacycles

Hypervalence in germanium compounds containing the tetracylic moiety {S(C6H3S)2O}Ge via OGe transann...

Synthesis and crystal structure of the N-8-(diphenyl-hydroxy-2-aminomethylpyridine)borane

Synthesis and Crystal Structure of [Te{S(C6H3S)2O}]: A Tetracyclic Tellurium(II) Compound Displaying...

Study of the D?Sb (D = O, S) Transannular Interaction in Sb-Monohalogenated Dibenzostibocines ? An E...

Structural Studies by NMR and X-Ray Crystallography of N-(p-Toluenesulfonyl)-Amino Acids

cis-Palladium(II) complexes of derivatives of di-(2-pyridyl)methane: Study of the influence of the b...

Ni(II) and Pd(II) organometallic and coordination complexes with a new tridentate N,N,O-donor ligand...

Hypervalence at tin(IV) by transannular bonding of sulfur in an eight-membered ring: The case of dib...

Synthesis, characterization and crystal structures of organolead dithiolate compounds displaying tra...