Results 131 to 140 of about 518,765 (252)

Cómo resolver un balance de energía CON reacción química - parte 1

open access: yes, 2013
Ejemplo de cómo encontrar el valor de "incremento de entalpía" para resolver un balance de energía dentro de la disciplina de la Ingeniería Química. Para el cálculo que se presenta se utilizan los valores de entalpías de formación de las sustancias que ...
Fernandez-Torres, Maria J.
core  

Stepwise Synthesis of Tetrabenzotriazaporphyrins (TBTAPs) and Their Open 2‐ and 3‐Ring Fragments

open access: yesChemistry – A European Journal, EarlyView.
Unexpected reaction pathways to porphyrin‐phthalocyanine hybrids are uncovered by the synthesis of “half‐macrocycle” fragments and subsequent macrocyclization. Rather than the expected 2:2 “ABBA” product, the 3:1 “ABBB” hybrid is isolated as the only macrocyclic product.
Jacob Gretton   +10 more
wiley   +1 more source

Silver‐Mediated Deuterium Labelling of Quinones and Related Compounds by Hydrogen Isotope Exchange With D2O

open access: yesChemistry – A European Journal, EarlyView.
A new silver‐catalyzed H/D exchange reaction was developed for the labelling of quinones and related compounds. Both homogeneous and heterogeneous catalytic processes were implemented using heavy water as a simple deuterium source. The corresponding deuterated compounds were obtained with high isotopic enrichment through a practical method that opens ...
Joyce C. de Oliveira   +7 more
wiley   +1 more source

Editorial

open access: yesEclética Química, 2008
Eclética Química
doaj   +2 more sources

Créditos

open access: yesVitae, 2009
Química Química Farmacéutica
doaj  

Editorial

open access: yesEclética Química, 2009
Eclética Química
doaj   +2 more sources

Correction: Unraveling the neuroprotective mechanisms of elephant black garlic extract against beta amyloid peptide-induced neurotoxicity. [PDF]

open access: yesFront Nutr
Gavilan J   +8 more
europepmc   +1 more source

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