Reactions of (iPrO)3MM(OiPr)3 (M = Mo, W) with low-coordinate phosphorus compounds. Formation of the first four-membered planar metallacycles, containing an MM triple bond†
Abstract
The low-coordinate phosphorus compounds (Me3Si)2N–PNSiMe3, (Me3Si)2N–P(S)NtBu and (Me3Si)2N–P(NSiMe3)2 react with (iPrO)3MM(OiPr)3 (M = Mo, W) to form four- and five-membered metallacycles with intact endocyclic or exocyclic MM triple bonds. The first four-membered planar metallacycles, containing an MM triple bond were obtained in reaction with (Me3Si)2N–PNSiMe3.