Synthesis of Rhodium and Ruthenium Pi-Complexes with Pendant Amide Substituents for Intramolecular Proton Transfer upon Activation of C–H Bonds
Cyclopentadienyl and arene complexes with pendant amide substituents [(C5Me4CH2CH2NHR)RhCl2]n and [(C6H5CH2CH2NHR)RuCl2]n (R = COCF3, Ts) were synthesized by heating the corresponding dienes with metal chlorides. They were tested as catalysts for the annulation of N-methoxy-p-methylbenzamide with alkynes. Contrary to...