Dearomatization of Benzene, Deamidization of <i>N</i>,<i>N</i>-Dimethylformamide, and a Versatile New Tungsten π Base

Abstract

The first group VI η2-coordinated benzene complex, TpW(NO)(PMe3)(η2-benzene), is reported. The bound arene is activated toward Diels−Alder cycloaddition, and substitution of the arene with DMF yields a rare example of a η2-coordinated amide.