Diphosphane 2,2′-binaphtho[1,8-de][1,3,2]dithiaphosphinine and the easy formation of a stable phosphorus radical cation

Abstract

A convenient synthesis route to 2,2'-binaphtho[1,8-de][1,3,2]di-thiaphosphinine () was found. Its stable radical cation 3˙(+) was accessed easily through one-electron oxidation with NOBF4.