2026-09-06T17:59:37Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/43602022-04-29T12:02:45Zcom_10259_4354com_10259_5086com_10259_2604com_10259_4363col_10259_4355col_10259_4364

00925njm 22002777a 4500 dc Fuertes Lázaro, Pedro author García Valverde, María author Cuevas Vicario, José Vicente author Díaz de Greñu Puertas, Borja author Rodríguez Rodríguez, Mª Teresa author Rojo Cámara, Mª Josefa author Torroba Pérez, Tomás author 2014-03 The scandium triflate-catalyzed cycloaddition reaction of polycyclic 1,2-dithiolethiones to maleimides is described. The reaction constitutes an easy approach to linear as well as branched oligomeric cis-fused dihydro[1,3]dithiolo[4,5-c]pyrrole-4,6-dione rings interconnected by 3,5-diylidenethiomorpholine-2,6-dithione or ylidene-6-thioxo[1,2]dithiolo[3,4-b][1,4]thiazin-3-one groups. The presence of highly colored, highly polarized push−pull α,β- unsaturated thione groups in their structures make these compounds sensitive to the presence of mercury(II) cation in organic or mixed organic/aqueous solvents. http://hdl.handle.net/10259/4360 Synthesis of Pyrrolidine-Fused 1,3-Dithiolane Oligomers by the Cycloaddition of Polycyclic Dithiolethiones to Maleimides and Evaluation as Mercury(II) Indicators