Bis(trimethylsilyl)selenide in the Selective Synthesis of β-Hydroxy, β-Mercapto, and β-Amino Diorganyl Diselenides and Selenides Through Ring Opening of Strained Heterocycles
dialkyl diselenides and selenides is described through reaction of bis(trimethylsilyl)selenide with epoxides, thiiranes, and aziridines catalyzed by tetrabutylammonium fluoride. Selective formation of a wide variety of β-hydroxy, β-mercapto, and β-amino diselenides and selenides is achieved by controlling the reaction conditions in the regioselective attack of the silylselenide onto the ring-strained
Evaluation of selenide, diselenide and selenoheterocycle derivatives as carbonic anhydrase I, II, IV, VII and IX inhibitors
作者:Andrea Angeli、Damiano Tanini、Caterina Viglianisi、Lucia Panzella、Antonella Capperucci、Stefano Menichetti、Claudiu T. Supuran
DOI:10.1016/j.bmc.2017.03.013
日期:2017.4
A series of selenides, diselenides and organoselenoheterocycles were evaluated as carbonic anhydrase (CA, EC 4.2.1.1) inhibitors against the human (h) isoforms hCA I, II, IV, VII and IX, involved in a variety of diseases among which glaucoma, retinitis pigmentosa, epilepsy, arthritis and tumors etc. These investigated compounds showed inhibitory action against these isoforms and some of them were selective
Treatment of epoxides with bis(trimethylsilyl)‐selenide under strictly controlled conditions allows to isolate β‐hydroxy selenols which evidence an unexpected stability, taking into account their known propensity to afford diselenides. Also thiiranes and aziridines lead to functionalized selenols bearing a thiol and a N‐Ts‐ or N‐Boc‐protected amino moiety on β‐position. These selenols were stable enough
Tetraselenotungstate 1 has been shown to be a versatile selenating reagent and has been used successfully for the regio- and stereospecific ring opening of aziridines to afford a number of interesting beta-amino diselenides in good yields in a single step under mild reaction conditions without using any Lewis acid. (c) 2006 Elsevier Ltd. All rights reserved.