valuable β-hydroxy aryl selenides from easily available arylamines, elemental selenium, and epoxides through a transition-metal-free radical process is described. A wide variety of β-hydroxy aryl selenides were obtained in good to excellent yields with excellent stereo- and regioselectivity. In this reaction, two C–Se bonds can be built along with the cleavage of a C–N and C–O bond, demonstrating the
Se powder as the selenating reagent, the copper-catalyzed double C–Se cross-coupling of aryl iodides, epoxides, and elemental selenium has been developed. This strategy provides a straightforward approach to the synthesis of β-hydroxy phenylselenides with excellent regioselectivity of the ring opening reaction. This process proceeds in generally good yields and is compatible with a broad range of functional
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
An efficient and simple one-pot procedure for the synthesis of β-hydroxy selenides in aqueous media through highly regioselective ring-opening of epoxides with diphenyl diselenide in the presence of active metallic indium is described.
A convenient, multi‐component reaction of organoboronic acids, selenium powder and epoxides has been developed, providing an efficient protocol for the synthesis of β‐hydroxy selenides with excellent selectivity and good functional group tolerance. Preliminary mechanistic studies suggest that the reaction proceeds through the silver‐catalyzed radical selenation of the arylboronic acids to generate