Acyclic 1,2-dimagnesioethanes/-ethene derived from magnesium(i) compounds: multipurpose reagents for organometallic synthesis.

ABSTRACT: Reactions of three magnesium(i) dimers, [{(^ArNacnac)Mg-}₂] (^ArNacnac = [(ArNCMe)₂CH]^-; Ar = xylyl (Xyl), mesityl (Mes) or 2,6-diethylphenyl (Dep)), with either 1,1-diphenylethylene (DPE), α-methylstyrene (MS), trans-stilbene (TS) or diphenylacetylene (DPA) led to the 1,2-addition of the Mg-Mg bond across the substrate, giving rise to the 1,2-dimagnesioethanes, [{(^XylNacnac)Mg}₂(μ-DPE)], [{(^DepNacnac)Mg}₂(μ-MS)], [{(^ArNacnac)Mg}₂(μ-TS)] (Ar = Mes or Dep); and a 1,2-dimagnesioethene, [{(^MesNacnac)Mg}₂(μ-DPA)]. The reactions involving the 1,1-substituted alkenes are shown to be readily redox reversible, in that the reaction products are in equil

SUBMITTER: Dange D 

PROVIDER: S-EPMC6428033 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature