Browsing by Author "Cardona, Wilson"
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Araya Maturana, Ramiro; Cardona, Wilson; Delgado Castro, Tomás; Jullian Matthaei, Carolina (JOHN WILEY & SONS LTD, 2000-02)The H-1 and C-13 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- ...
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Mendoza, Leonora; Araya Maturana, Ramiro; Cardona, Wilson; Delgado Castro, Tomás; García, C.; Lagos, C.; Cotoras, M. (AMER CHEMICAL SOC, 2005-12-28)The effect on mycelial growth of the fungus Botrytis cinerea of a set of structurally related tricyclic hydroquinones [9,10-dihydroxy-4,4-dimethyl-2,3,5,8-tetrahydroantracen-1(4H)-one and 9,10-dihydroxy-4,4-dimethyl-5,8- ...
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Almodovar, Iriux; Cardona, Wilson; Delgado Castro, Tomás; Zapata Torres, Gerald Amilcar; Caroli Rezende, Marcos; Araya Maturana, Ramiro; Maestro, M. Carmen; García Ruano, José L. (Elsevier, 2013)Diels–Alder cycloaddition of 8,8-dimethylnaphthalene-1,4,5(8H)-trione with diastereomeric hydroxysulfinyldienes proceeded with high yields and good p-facial and regioselectivities. The hydroxysulfoxide moiety controls ...
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Araya Maturana, Ramiro; Delgado Castro, Tomás; Cardona, Wilson; Weiss López, Boris (BENTHAM SCIENCE PUBL LTD, 2001-03)The structural elucidation of complex organic molecules relies heavily on the application of proton detected heteronuclear NMR. Among these techniques, the HMBC NMR experiment is probably the most useful 2D NMR method The ...