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.