As-stereogenic C2-symmetric organoarsines: synthesis and enantioselective self-assembly into a dinuclear triple-stranded helicate with copper iodide

Abstract

As-stereogenic C₂-symmetric 2,5-diaryl-cis-1,4-dihydro-1,4-diarsinines (2,5-diaryl-cis-DHDAs) were synthesized without volatile precursors. A racemic mixture of the ligands enantioselectively self-assembled into a dinuclear triple-stranded helicate with copper iodide in quantitative yield. In the helicate, two metals were bridged via three enantiomerically pure ligands.