Browsing by Author "Jullian Matthaei, Carolina"
Now showing items 1-20 of 22
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Araya Maturana, Ramiro; Cardona, Wilson; Delgado Castro, Tomás; Jullian Matthaei, Carolina (2000)The 1H and 13C NMR spectra of a set of structurally related tricyclic quinones consisting of 4,4-dimethylanthracene-1,9,10(4H)-trione (1), 4,4,6,7-tetramethylanthracene-1,9,10(4H)-trione (2) and the regioisomers 4,4,5-(3), ...
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Araya Maturana, Ramiro; Cassels Niven, Bruce; Delgado Castro, Tomás; Hurtado Guzmán, Claudio; Jullian Matthaei, Carolina (1999)The regiosomeric quinones 5-acetyloxymethyl-4,4,8-trimethyl-(5) and 8-acetyloxymethyl-4,4,5-trimethylanthracene-1,9,10(4H)-trione (6) were synthesized and their regiochemistry was assigned on the basis of the unambiguous ...
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Márquez, Amelia; Saitz Barría, Claudio; Cañete, Alvaro; Rodríguez, Hernán; Jullian Matthaei, Carolina (1998)The 1H and 13C NMR spectra of 2-phenyl-3H-naphtho[2,1-b][1,4]oxazin-3-one, 2-p-methoxyphenylnaphtho[1,2-d]oxazole and 2-phenylnaphtho[1,2-d]oxazole were totally assigned using a combination of one-and two-dimensional NMR ...
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Sobarzo Sánchez, Eduardo; Cassels Niven, Bruce; Jullian Matthaei, Carolina; Castedo, Luis (2003)The oxoisoaporphines 2,3-dihydro-7H-dibenzo[de,h]quinolin-7-one, 2,3-dihydro-5-methoxy-7H-dibenzo [de,h] quinolin-7-one, 5-methoxy-6-hydroxy-2,3-dihydro-7H-dibenzo[de,h]quinolin-7-one, 5,6-dimethoxy-2,3-dihydro-7H-dibenz ...
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Jullian Matthaei, Carolina; Orosteguis, Teresita; Pérez Cruz, Fernanda; Sánchez, Paulina; Mendizábal Emaldía, Fernando; Olea Azar, Claudio (2008)Properties of inclusion complexes between morin (M) and β-cyclodextrin (βCD), 2-hydroxypropyl-β-cyclodextrin (HPβCD) and Heptakis (2,6-O-di methyl) β-cyclodextrin (DMβCD) such as aqueous solubility and the association ...
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Castãeda, Fernando; Jullian Matthaei, Carolina; Bunton, Clifford A.; Garland, María Teresa; Baggio, Ricardo (2007)Hydrogen bonding and crystal packing play major roles in determining the conformations of ethyl methyl 2-(triphenyl-phospho-ranyl-idene)malonate, Ph3P=C(CO2CH3)CO2CH2CH3 or C24H23O4P, (I), and dimethyl 2-(triphenyl-phosphor- ...
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Castañeda Magliona, Fernando; Jullian Matthaei, Carolina; Bunton, Clifford A.; Garland, María Teresa; Baggio, Ricardo (International Union of Crystallography, 2007)Hydrogen bonding and crystal packing play major roles in determining the conformations of ethyl methyl 2-(triphenyl-phosphoranylidene)malonate, Ph3P=C(C02CH3)CO2CH2CH3 or C24H23O4P,(I), and dimethyl 2-(triphenylphosphora ...
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Olea Azar, Claudio; Abarca, B.; Norambuena, Ester; Opazo, L.; Jullian Matthaei, Carolina; Valencia, S.; Ballesteros, R.; Chadlaoui, M. (Elsevier B.V., 2008-11)The electron spin resonance (ESR) spectra of free radicals obtained by electrolytic reduction of triazolopyridyl pyridyl ketones and dipyridyl ketones derivatives were measured in dimethylsulfoxide (DMSO). The hyperfine ...
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Jullian Matthaei, Carolina (2009)The slightly water-soluble flavonoid galangin (G) and its inclusion with either β-cyclodextrin (βCD), hydroxypropyl-β-cyclodextrin (HPβCD) or Heptakis-2,6-O-di methyl-β-cyclodextrin (DMβCD) were investigated. The stoichiometric ...
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Folch Cano, Christian; Olea Azar, Claudio; Sobarzo Sánchez, Eduardo; Alvarez-Lorenzo, Carmen; Concheiro, Angel; Otero, Francisco; Jullian Matthaei, Carolina (2011)The physicochemical properties of 4-hydroxy-7-methoxy-3-phenyl-2H-chromen- 2-one (4HC) and β-cyclodextrins (CDs) inclusion complexes were investigated. The phase solubility profile of 4HC with β-cyclodextrin derivatives ...
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Pérez Cruz, Fernanda; Jullian Matthaei, Carolina; Rodríguez Borges, Jorge; Arán, Vicente; Olea Azar, Claudio (2009)Four different 5-nitroindazole derivatives (1-4) and its inclusion with Heptakis(2,6-di-O-methyl)-beta-cyclodextrin (DM beta CD) were investigated. The stoichiometric ratios and stability constants describing the extent ...
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Saitz Barría, Claudio; Rodríguez, H.; Márquez, Amelia; Cañete, Alvaro; Jullian Matthaei, Carolina; Zanocco Loyola, Antonio (MARCEL DEKKER INC, 2001)A method that allows the synthesis of 4 different heterocyclic systems of fused aryl oxazoles, i.e., naphtho[1,2-d], naphtho[2,1-d], naphtho[2,3-d], and benzo[d]oxazoles in reasonable yield is del scribed. This method ...
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Folch Cano, Christian; Guerrero, Juan; Speisky Cosoy, Hernán; Jullian Matthaei, Carolina; Olea Azar, Claudio (Springer, 2013)The present study is focused on the characterization of the interaction between (-)-epigallocatechingallate (EGCG) and cyclodextrins like b-cyclodextrin (bCD), heptakis(2,6 di-O-methyl)-b-cyclodextrin (DMbCD), ...
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Folch Cano, Christian; Guerrero, Juan; Speisky Cosoy, Hernán; Jullian Matthaei, Carolina; Olea Azar, Claudio (2014)The present study is focused on the characterization of the interaction between (-)-epigallocatechingallate (EGCG) and cyclodextrins like β-cyclodextrin (βCD), heptakis(2,6 di-O-methyl)-β-cyclodextrin (DMβCD), and ...
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De la Fuente, Julio; Aliaga, Christian; Poblete, Cristian; Zapata, Gerald; Jullian Matthaei, Carolina; Saitz Barría, Claudio; Cañete, Alvaro; Kciuk, Gabriel; Sobarzo Sánchez, Eduardo; Bobrowski, Krzysztof (2009)Photoreduction of oxoisoaporphine (OIA) (l-aza-benzo-[de]anthracen-7-one) and its 5-methoxy (5-MeOOIA) derivative by selected amines (two non-a-hydrogen-donating amines (l,4-diaza[2.2.2]-bicyclooctane (DABCO) and ...
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Insuasty O, Braulio; Insuasty I, Henry; Quiroga P, Jairo; Saitz Barría, Claudio; Jullian Matthaei, Carolina (HeteroCorporation, 2000)Several new 6-amino- and 6,8-diamino-4-aryl-2,3-dihydropyrimido[4,5- b][1,4]diazepines were obtained from the reaction of 4,5,6-triaminopyrimidine 1a and 2,4,5,6-tetraaminopyrimidine 1b with one equivalent of 3- ...
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Insuasty O, Braulio; Insuasty I, Henry; Quiroga P, Jairo; Saitz Barría, Claudio; Jullian Matthaei, Carolina (HeteroCorporation, 1999)New 4-Aryl-6-methyl-8-phenyl-2,3-dihydropyrazolo[3,4-b]diazepines and 4- aryl-8-methyl-6-phenyl-2,3-dihydropyrazolo[4,3-b]diazepines were obtained from the reaction of 4,5-diamino-3-methyl-1-phenylpyrazole 1 with one ...
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Jullian Matthaei, Carolina; Cifuentes, Constanza; Alfaro, Muriel; Miranda, Sebastián; Barriga, Germán; Olea Azar, Claudio (2010)The inclusion complexes of Luteolin (LU) with cyclodextrins (CDs) including β-cyclodextrin (βCD), hydroxypropyl-β-cyclodextrin (HPβCD) and dimethyl-β-cyclodextrin (DMβCD), Scheme 1, have been investigated using the method ...
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Buono Core, Gonzalo; Vanessa Núñez, M.; Lucero, Andrea; Vargas M., Robinson; Jullian Matthaei, Carolina (Sociedad Chilena de Quimica, 2011)In this work, bioactive compounds present in flower heads of German Chamomille, were extracted and isolated in pure forms by chromatographic techniques. These compounds, spiroketal enol ethers, present in both isomeric ...
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Quiroga Campano, Cinthia del Rosario; Gómez Machuca, Horacio Exequiel; Moris, S.; Jara, P.; Fuente, Julio de la; Pessoa Mahana, Hernán; Jullian Matthaei, Carolina; Saitz, C. (Elsevier, 2017)A new calix[4]arene thiourea derivative bearing a benzothiazolyl moiety (L) was synthetized and characterized by single crystal X-ray, NMR and ESI-TOF. The binding ability of the bifunctional receptor towards several ions ...