Axially chiral heteroaromatics. 1. Preparation of optically active 1,1′‐biisoquinoline N,N'‐dioxide

Abstract
A novel optically active heteroaromatic compound, (+)‐1,1′‐biisoquinoline N,N′‐dioxide (1) and its atropisomer (‐)‐1 were prepared and characterized by several spectroscopic methods.