Reactions of Mesityl Azide with Ferrocene-Based N-Heterocyclic Germylenes, Stannylenes and Plumbylenes, Including PPh₂ -Functionalised Congeners.

ABSTRACT: The reactivity of ferrocene-based N-heterocyclic tetrylenes [{Fe(η⁵ -C₅ H₄ -NSitBuMe₂ )₂ }E] (E=Ge, Sn, Pb) towards mesityl azide (MesN₃ ) is compared with that of PPh₂ -functionalised congeners exhibiting two possible reaction sites, namely the E^II and P^III atom. For E=Ge and Sn the reaction occurs at the E^II atom, leading to the formation of N₂ and an E^IV =NMes unit. The germanimines are sufficiently stable for isolation. The stannanimines furnish follow-up products, either by [2+3] cycloaddition with MesN₃ or, in the PPh₂ -substituted case, by NMes transfer from the Sn^IV to the P^III atom. Whereas [{Fe(η⁵

SUBMITTER: Guthardt R 

PROVIDER: S-EPMC9400874 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature