Intramolecular nucleophilic addition to the 2 position of coordinated 2,2'-bipyridine by a deprotonated dimethyl sulfide ligand.

Financial support from Ministerio de Ciencia e Innovacion (Grant CTQ2009-12366) and Ministerio de Economia y Competitividad (Grants CTQ2012-37379-C02-01 and CTQ2012-37379-C02-02) is gratefully acknowledged. R.A. thanks the Universidad de Oviedo (Beca de Excelencia del Campus de Excelencia Internacional), Principado de Asturias (Beca Severo Ochoa), and Ministerio de Educacion, Cultura y Deporte (Beca FPU), for graduate studentships.