Reactions of 1-alkynes with trans-[ReCl(N2)(Ph2PCH2CH2PPh2)2]: preparation of the vinylidene compounds trans-[ReCl(CCHR)(Ph2PCH2CH2PPh2)2](R = alkyl or aryl) and X-ray structure of trans-[ReCl(CCHPh)(Ph2PCH2CH2PPh2)2]
Abstract
The vinylidene complexes trans-[ReCl(CCHR)(dppe)2](1; R = Ph, Et, But, SiMe3, CO2Me, CO2Et, or C6H10OH-1; dppe = Ph2PCH2CH2PPh2) have been prepared by reaction of trans-[ReCl(N2)(dppe)2] with an excess of the appropriate 1-alkyne (HCCR), in refluxing tetrahydrofuran (thf) or under tungsten-filament light (in thf or toluene). The X-ray structural analysis of (1; R = Ph) has been performed.