N‐Heterocyclic Imine‐Stabilized Binuclear Tin(II) Cations: Synthesis, Reactivity, and Catalytic Application

Abstract

AbstractThe reaction of Cp*Sn[OTf] (Cp*=C5Me5; OTf=O3SCF3) with one equivalent of IPrNLi (IPrN=bis(2,6‐diisopropylphenyl)imidazolin‐2‐iminato) resulted in the binuclear [OTf]‐bridged tin complex 1. Similarly, the [BF4]‐bridged bimetallic complex 2 was synthesized by the reaction of Cp*Sn[BF4] with IPrNLi (1 eq.). It was also possible to prepare 1 from 2 via an anion exchange reaction. The high‐yield conversion of 2 into the binuclear iodostannylene [IPrNSnI]2 3 was accomplished by treatment with LiI. The catalytic potential of 1 and 2 was demonstrated in the hydroboration of carbonyls.