η-Arene and η-cyclohexadiene tungsten chemistry: new synthetic routes to tertiary phosphine–hydride derivatives
Abstract
Convenient syntheses of W(η-C6H8)(PMe3)3H2 and W(η-C6H6)(PMe3)2H2 are described; these compounds, together with W(η-C6H6)(η-C6H8)H2, W(η-PhMe)(PMe3)2H2, W(η-PhMe)(Me2PCH2CH2PMe2)H2, and W(η-C6H6)(PMe3)3 have been synthesized using either tungsten atoms or by the reductive labilization of η-PhMe ring of W(η-PhMe)2 using potassium metal.