The Rose Bengal-photocatalyzed perfluorohexylation of olefins, alkynes, and electron-rich aromatic compounds in water was achieved employing perfluorohexyl iodide as fluoroalkyl source and TMEDA as sacrificial donor under green LED irradiation. Alkenes and alkynes rendered products derived from the atom transfer radical addition (ATRA) pathway, and in the case of alkynes, exclusively as E-stereoisomers. These are the first examples of photocatalyzed ATRA reactions carried out excursively in water alone. The reactions of aromatic compounds under the current protocol in water present the advantage of employing a perfluoroalkyl iodide (C 6 F 13 -I) as source of perfluorohexyl radicals. Examples of photocatalytic late-stage incorporations of fluoroalkyl moieties into two commercial drugs of widespread use are reported.
En el presente artículo se examina la documentación residual que ha sido develada a partir del levantamiento parcial del secreto de 50 años impuesto a la Comisión Nacional sobre Prisión Política y Tortura (2003), segunda instancia de este tipo realizada en Chile para calificar y reparar a las personas victimizadas por la última dictadura civil militar (1973-1990). Busco dar cuenta de las relaciones, efectos y usos que ha producido (y puede llegar a producir) la modificación del campo de lo visible/invisible en relación a las personas declarantes, y la verdad oficial. Se trabajó con una metodología cualitativa centrada en el análisis de artefactos de registro presentes en las 23 carpetas de calificación de la Comisión Valech desclasificadas que conforman el corpus documental y de entrevistas realizadas a diversos actores involucrados en el levantamiento del secreto.
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