Browsing by Author "Soto Delgado, Jorge"
Now showing items 1-18 of 18
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(Bentham Science Publishers, 2010-11-02)Three different intramolecular Diels-Alder (IMDA) reactions associated with the formation of fused and bridged tricyclodecane skeletons have been studied at the B3LYP/6-31G(d) computational level. While substitution on ...
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(Elsevier, 2009-08-19)Meroditerpenoids, 2-[20(E)-30,70,110,150-tetramethylhexadec-2-en-10-yl]-6-methyl-1,4-benzohydroquinone diacetate and 40-chlorostypotriol triacetate, along with eight known compounds isolated from the dichloromethane ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2007-11-15)This study was undertaken to investigate the free radical -scavenging and antioxidant activities of various structurally related hydroquinones including hydroxynaplithalenones and dihydroxyanthracenones. Electron spin ...
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(2011)Biological transformation of the meroditerpenoid, stypotriol triacetate (1) by the fungi Aspergillus niger, Cunninghamella elegans, Gibberella fujikuroi and Mucor plumbeus was studied. The incubation of 1 with A. niger ...
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Bond Fukui Functions As Descriptor of the Electron Density Reorganization in pi Conjugated Systems (AMER CHEMICAL SOC, 2012-01-06)The bond Fukui function is introduced and tested as a new reactivity index capable of predicting the evolution of bond breaking and formation processes during an organic reaction involving pi conjugated systems. As an ...
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(American Chemical Society, 2011-11-29)The bond Fukui function is introduced and tested as a new reactivity index capable of predicting the evolution of bond breaking and formation processes during an organic reaction involving π conjugated systems. As an ...
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(Elsevier Ltd., 2006-02-28)A series of tricyclic hydroquinones, incorporating a carbonyl group in the ortho position relative to the phenol function, were tested as inhibitors of oxygen uptake against the TA3 mouse carcinoma cell line and its ...
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(Elsevier Ltd., 2006-02-28)Abstract—A series of tricyclic hydroquinones, incorporating a carbonyl group in the ortho position relative to the phenol function, were tested as inhibitors of oxygen uptake against the TA3 mouse carcinoma cell line and ...
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(Elsevier, 2010-09-29)We herein demonstrate that the global electrophilicity may be distributed into fragments within a single molecule by using an empirical partitioning scheme of the electronic chemical potential framed on the chemical ...
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(Sociedad Chilena de Quimica, 2012)4,4-Dimethyl-5,8-dihydroanthracene-1,9,10(4H)-trione (Q1) and 9,10-Dihydroxy-4,4-dimethyl-5,8-dihydro-1 (4H)-anthracenone (Q2), two molecules that inhibit cancer cell respiration, were selectively deuterated and dissolved ...
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(Editorial Board, 2010-11-12)The sesquiterpene pacifenol is one of the main constituents of the red alga Laurencia claviformis. Earlier work on the semisynthetic derivatives of pacifenol afforded a series of halogenated sesquiterpenes. The aim of the ...
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(2012)The mechanism of the intramolecular Diels-Alder (IMDA) reaction of benzoquinone 1, in the absence and in the presence of three water molecules, 1w, has been studied by means of density functional theory (DFT) methods, using ...
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(2010)In a previous work (L. R. Domingo, M. J. Aurell, P. Perez and R. Contreras, Tetrahedron 2002, 58, 4417) we proposed that the difference in global electrophilicity index be taken as a measure of the polarity at the transition ...
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(Sociedad Chilena de Quimica, 2012)The diene Erythrina alkaloids erysotrine (1), erysodine (2), erythraline (3), erytharbine (4), and erysotrine N-oxide (5), plus the hydroxylated dihydro derivative of 1, epierythratidine (6) were isolated from seeds of ...
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(MDPI, 2018)The wide tissue distribution of the adrenergic 3 receptor makes it a potential target for the treatment of multiple pathologies such as diabetes, obesity, depression, overactive bladder (OAB), and cancer. Currently, there ...
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(2009)The mechanisms of the Diels-Alder (DA) reactions of 2-methoxy-5-methyl-1,4-benzoquinone 1 with 2-methyl-1,3-butadiene 2, in the absence and in the presence of LA catalysts, have been studied using the DFT method at the ...
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(Elsevier B.V., 2009-03-03)The mechanisms of the Diels–Alder (DA) reactions of 2-methoxy-5-methyl-1,4-benzoquinone 1 with 2- methyl-1,3-butadiene 2, in the absence and in the presence of LA catalysts, have been studied using the DFT method at the ...
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(JOHN WILEY & SONS LTD, 2009-06)The polar Diels-Alder (DA) reactions of 2-acetyl-1,4-benzoquinone (acBQ) with methyl substituted 1,3-butadienes have been studied using DFT methods at the B3LYP/6-31 G(d) level of theory. These reactions are characterized ...
