Crystal Structures of Bis[(8′-(dimethylamino)naphth-1′-yl)dimethylsilyl] Ether and Bis[(8′-(dimethylamino)naphth-1′-yl)-1-silacyclobut-1-yl] Ether. Structural Evidence for the Enhanced Lewis Acidity of Silacyclobutane Derivatives

Abstract

The X-ray structure of bis[(8′-(dimethylamino)naphth-1′-yl)-1-silacyclobut-1-yl] ether (6) provides structural evidence for enhanced Lewis aciditiy of the silicon in silacyclobutyl ring derivatives compared with that of the unstrained analogue 7.