SCAN: Cp*-Functionalized N-Heterocyclic Carbenes: Synthesis, Coordination and Catalytic Applications

SCAN

Title: Cp*-Functionalized N-Heterocyclic Carbenes: Synthesis, Coordination and Catalytic Applications

Speaker: André Pontes da Costa, Homogeneous Catalysis Lab

Abstract

The easy access to N-heterocyclic carbenes (NHCs) and their potential application in a large number of homogeneously-catalyzed processes, has led to a rapid development in the design of an almost unlimited number of NHC-containing architectures. NHCs are known to be compatible with a wide set of functionalities, including pyridines, alcohols, phosphines, arenes, aryls, ethers, oxazolines, amines and other donor groups.

We envisioned that the functionalization of NHCs with cyclopentadienyl rings might have interesting consequences favouring stability, rigidity and catalytic activity in their metal complexes.

In this seminar, we present the synthesis and characterization of the first Cp*-functionalized NHC and their coordination to Iridium and Rhodium. A series of Cp’-functionalized NHCs along with their coordination to Molybdenum will be reported. The catalytic activity of the Iridium and Rhodium complexes in a variety of hydrogen transfer reactions will be discussed.

Short CV:

Oct 2005 - Graduated in Química Aplicada from FCT-UNL

From Dec 2005 to Nov 2006 - Research Fellow at Homogeneous Catalysis Laboratory at ITQB under the supervision of Dr. Beatriz Royo.

Since Dec 2006 - PhD student at Homogeneous Catalysis Laboratory (ITQB-UNL) and Organometallic Chemistry Group (UJI-Spain) under the supervision of Dr. Beatriz Royo and Prof. Eduardo Peris.