Synthesis and Structure of Eight-,Nine-,and Ten-Membered Rings with P-Se-Se-P Linkages

摘要

Organoselenium compounds are studied because of their interesting reactivities and potential biological or pharmaceutical significance.Organic diselenides,as useful synthetic reagents and intermediates,have played an important role in organoselenium chemistry,as they are stable,easily handled,and reactive enough to generate electrophilic,nucleophilic,and radiophilic species.There are only a few examples of macrocycles containing diselenide linkages,and many of the known routes to diselenides in general suffer from the use of highly toxic H2Se,harsh reaction conditions,low yields,or complicated manipulations.