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Synthesis of 2-hydroxy-3-substituted naphthoquinones using the Heck reaction 

Pérez Sánchez, Alice Lorena; Lamoureux Lamontagne, Guy; Zhen-Wu, Bi Yun (2007-06)
An efficient Heck coupling of 2-hydroxy-3-iodo-naphthoquinone with a series of electron-deficient alkenes in aqueous solution has been accomplished. The method is characterized by simple conditions and facile work-up to ...

Reactivity and structure of derivatives of 2-hydroxy-1,4-naphthoquinone (lawsone) 

Lamoureux Lamontagne, Guy; Pérez Sánchez, Alice Lorena; Araya Marchena, Mario Esteban; Agüero Robles, Christian Gerardo (2007-11)
The structures of two derivatives of 2-hydroxy-1,4-naphthoquinone (lawsone) are examined using the density functional theory (DFT) hybrid functional B3LYP. Using the optimized structure of lawsone acetate, the reactivity ...
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Pheromone chirality of african palm weevil, Rhynchophorus phoenicis (F.) and palmetto weevil, Rhynthophorus crueniatus (F.) (Coleoptera: Curculionidae) 

Pérez Sánchez, Alice Lorena; Gries, Gerhard; Gries, Regine; Giblin Davis, Robin M.; Oehlschlager, Allan Cameron (1994-09)
There are four stereoisomers of both 3-methyl-octan-4-ol, the aggregation pheromone of the African palm weevil,Rhynchophorus phoenicis (F.) and 5-methyl-octan-4-ol, the aggregation pheromone of the palmetto weevil,Rhynchophorus ...

Ethyl propionate: Synergistic kairomone for african palm weevil,Rhynchophorus phoenicis L. (Coleoptera: Curculionidae) 

Gries, Gerhard; Gries, Regine; Pérez Sánchez, Alice Lorena; Gonzales, Lilliana M.; Pierce Jr., Harold D.; Oehlschlager, Allan Cameron; Rhainds, Marc; Zebeyou, Mesmer; Kouame, Brou (1994-04)
Small trunk pieces of a freshly felled 10-year-old oil palm,Elaeis quineensis (Jacq.), were placed in a modified Nalgene desiccator, and volatiles captured for six days on Porapak Q. Gas chromatographic (GC) analysis of ...

Aggregation Pheromone of Palm Weevil, Dynamis borassi 

Peña, Jorge E.; Giblin Davis, Robin M.; Gries, Regine; Gries, Gerhard; Peña Rojas, E.; Pinzón, I.; Pérez Sánchez, Alice Lorena; Pierce Jr., Harold D.; Oehlschlager, Allan Cameron (1997)
4-Methyl-5-nonanol (1) is the male-produced aggregation pheromone of the palm weevil, Dynamis borassi (F.) from Colombia. The pheromone was identified by coupled gas chromatographic–electroantennographic detection (GC-EAD) ...
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Synthesis of Iodinated Naphthoquinones Using Morpholine-Iodine Complex 

Pérez Sánchez, Alice Lorena; Lamoureux Lamontagne, Guy; Herrera Echeverría, Adelita (Synthetic Communications Vol. 34, No. 18, pp. 3389–3397, 2004, 2004)
The efficient synthesis of 2‐hydroxy‐3‐iodo‐1,4‐naphthoquinone (3), 2‐amino‐3‐iodo‐1,4‐naphthoquinone (4), and 2‐iodo‐1,4‐naphthoquinone (5) have been developed using the parent naphthoquinone in combination with the ...
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Light Reflection by Cuticles of Chrysina Jewel Scarabs: Optical Measurements, Morphology Characterization, and Theoretical Modeling 

Vargas Castro, William E.; Hernández Jiménez, Marcela; Libby Hernández, Eduardo; Azofeifa Alvarado, Daniel E.; Barboza Aguilar, Cinthya; Solís Blanco, Ángel Arturo (2016)
Cuticles of some Chrysina scarabs are characterized by flat, graded, and twisted structures of nanosized chitin fibrils. As inferred from SEM images, each species has its own spatial period or pitch P which is dependent ...

Ecotoxicological analysis during the removal of carbofuran in fungal bioaugmented matrices 

Ruiz Hidalgo, Karla María; Masís Mora, Mario Alberto; Barbieri, Edison; Carazo Rojas, Elizabeth; Rodríguez Rodríguez, Carlos E. (2016-02)
Biomixtures are used for the removal of pesticides from agricultural wastewater. As biomixtures employ high content of lignocellulosic substrates, their bioaugmentation with ligninolytic fungi represents a novel approach ...

Design of an optimized biomixture for the degradation of carbofuran based on pesticide removal and toxicity reduction of the matrix 

Chin Pampillo, Juan Salvador; Ruiz Hidalgo, Karla María; Masís Mora, Mario Alberto; Carazo Rojas, Elizabeth; Rodríguez Rodríguez, Carlos E. (2015-12)
Pesticide biopurification systems contain a biologically active matrix (biomixture) responsible for the accelerated elimination of pesticides in wastewaters derived from pest control in crop fields. Biomixtures have been ...
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Estrogenic and serotonergic butenolides from the leaves of Piper hispidum Swingle (Piperaceae) 

Michel, Joanna L.; Chen, Yegao; Zhang, Hongjie; Huang, Yue; Krunic, Aleksej; Orjala, Jimmy; Veliz, Mario; Soni, Kapil K.; Soejarto, Djaja Doel; Caceres, Armando; Pérez Sánchez, Alice Lorena (Journal of Ethnopharmacology 129(2): 220–226, 2010)
Ethnopharmacological relevance: Our previous work has demonstrated that several plants in the Piperaceae family are commonly used by the Q’eqchi Maya of Livingston, Guatemala to treat amenorrhea, dysmenorrhea, and pain. ...
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AuthorPérez Sánchez, Alice Lorena (21)Oehlschlager, Allan Cameron (13)Gries, Gerhard (12)Gries, Regine (12)Pierce Jr., Harold D. (8)Giblin Davis, Robin M. (6)Lamoureux Lamontagne, Guy (6)Beita Sandí, Wilson (5)Carazo Rojas, Elizabeth (4)Karanfil, Tanju (4)... View MoreType
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  • Repositorios universitarios

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