LETTER	Synlett 2006: 1479-1484   DOI: 10.1055/s-2006-941597
© Georg Thieme Verlag Stuttgart · New York
A Convenient Synthesis of Oxazolines and Imidazolines from Aromatic Aldehydes with Pyridinium Hydrobromide Perbromide in Water
Shinsei Sayama*
Department of Chemistry, Fukushima Medical University, Hikariga-oka, Fukushima 960-1295, Japan Fax: +81(24)5471369; e-Mail: ssayama@fmu.ac.jp;
Received 16 February 2006

Abstract

Various 2-oxazolines were prepared from aromatic aldehydes and 2-aminoethanol with pyridinium hydrobromide per­bromide in water at room temperature. 2-Imidazolines were also obtained in good yields from aromatic aldehydes and ethylenediamine under the same reaction conditions.

Key words

oxazoline - imidazoline - pyridinium hydrobromide perbromide - aldehyde - 2-aminoethanol - ethylenediamine