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Thermal behavior of some cyclic anhydrides: an important characterization for synthesis in the polymer field
(2022-01-01)
Polyfunctional cyclic organic anhydrides are widely used in different fields, especially in monomer synthesis and therefore polymers applications. However, there is a lack in the literature about their thermal and spectroscopic ...
Gas-phase maleic anhydride hydrogenation over Ni/SiO2- Al2O3 catalysts: Effect of metal loading
(Springer, 2013-06)
The gas-phase maleic anhydride hydrogenation was studied at 170 °C and 1 bar using Ni/SiO2–Al2O3 catalysts varying metal loading. The maximum γ-butyrolactone selectivity was reached for a 10 wt% nickel load. On the basis ...
Deactivation and regeneration of Cu/SiO2 catalyst in the hydrogenation of maleic anhydride. Kinetic modeling
(Elsevier Science, 2009-10)
In this work, the deactivation of a Cu(10%)/SiO2 catalyst in the gas-phase hydrogenation of maleic anhydride (MA) was studied. The reaction was performed between 170 and 220 °C, at atmospheric pressure and using two contact ...
Synthesis and properties of trifluoromethoxyl fluoroformyl anhydride, CF 3OC(O)OC(O)F
(Elsevier Science Sa, 2012-09)
In the present work the synthesis of the trifluoromethoxyl fluoroformyl anhydride is presented for the first time. Two strategies were employed to obtain CF 3OC(O)OC(O)F: the thermal decomposition of CF 3OC(O)OOOC(O)F in ...
Formation and decomposition of N-alkyinaphthalimides: experimental evidences and ab initio description of the reaction pathways
(WILEY-BLACKWELL, 2011)
The kinetics of hydrolysis of 1,8-N-butyl-naphthalimide (1,8-NBN) to 1,8-N-butyl-naphthalamide (1,8-NBAmide) and of 2,3-N-butyl-naphthalimide (2,3-NBN) to 2,3-N-butyl-naphthalamide (2,3-NBAmide), as well as the formation ...
Titanium(IV)-EDTA complex - Kinetics of thermal decomposition by non-isothermal procedures
(Springer, 2006-01-01)
This work aims the evaluation of the kinetic triplets corresponding to the two successive steps of thermal decomposition of Ti(IV)-ethylenediaminetetraacetate complex. Applying the isoconversional Wall-Flynn-Ozawa method ...
Titanium(IV)-EDTA complex - Kinetics of thermal decomposition by non-isothermal procedures
(Springer, 2006-01-01)
This work aims the evaluation of the kinetic triplets corresponding to the two successive steps of thermal decomposition of Ti(IV)-ethylenediaminetetraacetate complex. Applying the isoconversional Wall-Flynn-Ozawa method ...
Mechanism of photo-oxidation of heptafluorobutyric anhydride in the presence of NO2. Synthesis and characterization of heptafluoropropyl peroxynitrate, CF3CF2CF2OONO2
(American Chemical Society, 2012-10)
The photolysis of heptafluorobutyric anhydride at 254 nm in the presence of NO2 and O2 has been studied. It leads to the formation of CF3CF2CF2OONO2, CF 3CF2OONO2, and CF2O as the only fluorine-containing carbonaceous ...
Microondas doméstico na síntese de derivados ftalimídicos
(2006-12-01)
Microwaves have been used in organic synthesis, since 1986, and have proved advantageous in several respects: the possibility of higher yields, greater selectivity and less thermal decomposition. Phthalimide and its ...
Microondas doméstico na síntese de derivados ftalimídicos
(2006-12-01)
Microwaves have been used in organic synthesis, since 1986, and have proved advantageous in several respects: the possibility of higher yields, greater selectivity and less thermal decomposition. Phthalimide and its ...