Novel specific carbon–carbon bond formation; substituent and solvent effects associated with hydride addition to aromatic olefins
Abstract
2,2-Diarylpropanes are conveniently prepared from 1,1-diarylethylenes, lithium aluminium hydride, and anisole in tetrahydrofuran while 1,1-diarylethanes are obtained at 140 °C in bis(methoxyethyl) ether; hydride addition to 1,1-diarylethylenes is decelerated by 2-methyl substituents, and o- and p-methoxy, but not m-methoxy.