Synthesis 2008(19): 3099-3107  
DOI: 10.1055/s-2008-1067263
PAPER
© Georg Thieme Verlag Stuttgart ˙ New York

A Comparative Study on Stille Cross-Coupling Reactions of 2-Phenylthiazoles and 2-Phenyloxazoles

Johanna Hämmerle, Markus Spina, Michael Schnürch, Marko D. Mihovilovic, Peter Stanetty*
Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163-OC, 1060 Vienna, Austria
Fax: +43(1)5880115499; e-Mail: peter.stanetty@tuwien.ac.at;
Further Information

Publication History

Received 15 April 2008
Publication Date:
05 September 2008 (online)

Abstract

A systematic study of the cross-coupling capability of the 4- and 5-positions of 2-phenylthiazoles and -oxazoles under Stille conditions is presented. The azoles were both applied as stannanes and as the halide component. The obtained results were compared regarding the position of the halide and Bu3Sn group. In order to establish a general reactivity platform for those heterocyclic systems, a broad variety of aromatic and heteroaromatic halides were coupled and some significant differences concerning the coupling properties of the investigated systems were observed.