η(3) -Allyl coordination at tin(II)-reactivity towards alkynes and benzonitrile

Kilian M Krebs; Jessica Wiederkehr; Julia Schneider; Hartmut Schubert; Klaus Eichele; Lars Wesemann

doi:10.1002/anie.201500386

η(3) -Allyl coordination at tin(II)-reactivity towards alkynes and benzonitrile

Angew Chem Int Ed Engl. 2015 Apr 27;54(18):5502-6. doi: 10.1002/anie.201500386. Epub 2015 Mar 12.

Authors

Kilian M Krebs¹, Jessica Wiederkehr, Julia Schneider, Hartmut Schubert, Klaus Eichele, Lars Wesemann

Affiliation

¹ Institut für Anorganische Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen (Germany).

PMID: 25766048
DOI: 10.1002/anie.201500386

Abstract

We herein report the synthesis and characterization of a terphenyl-substituted Sn(II) allyl compound featuring an η(3) coordination mode in solution and in the solid state. Two examples for the interesting reactivity of the allyl Sn(II) molecule are presented: Reactions with terminal alkynes result in the formation of tricyclic compounds by CC bond formation and the dimerization of two Sn moieties whereas the reaction with benzonitrile leads to a sixteen-membered ring system through CH activation.

Keywords: alkynes; allyl ligands; macrocycles; nitriles; stannylene.