Preparation, structure, and metal coordination of 2-(2-methyl-2,3-dihydro-1H-perimidin-2-yl)benzene-1,3-diol

A perimidine with four donor sites, 2-(2-methyl-2,3-dihydro-1H-perimidin-2-yl)benzene-1,3-diol has been prepared through InCl3 catalysis from commercial precursors. It exhibits in solid state a bent structure, with two ring systems substantially orthogonal. A ruthenium(II) complex catalyzes the transfer hydrogenation of phenylalkyl ketones by isopropanol with good efficiency.