Synthesis 2007(12): 1807-1810  
DOI: 10.1055/s-2007-983708
PAPER
© Georg Thieme Verlag Stuttgart · New York

A New General and Facile Method for the Synthesis of 4-Alkyl-1,3-oxazoline-4-carboxylic Acids from N-Acyl-2-alkylserines

Sebastian Olczyka, Janina E. Kamińska*a, Beata Kolesińskab, Zbigniew J. Kamińskib
a Institute of General Food Chemistry, Technical University of ŁódŸ, ul. B. Stefanowskiego 4/10, 90-924 ŁódŸ, Poland
Fax: +48(42)6362860; e-Mail: janina.kaminska@p.lodz.pl;
b Institute of Organic Chemistry, Technical University of ŁódŸ, ul. S. ¯eromskiego 116, 90-924 ŁódŸ, Poland
Further Information

Publication History

Received 12 February 2007
Publication Date:
08 June 2007 (online)

Abstract

A new synthesis of 4-alkyl-1,3-oxazoline-4-carboxylic acids involves the thermal rearrangement of 4-alkyl-4-hydroxy­methyl-1,3-oxazolin-5-ones prepared from N-acyl-2-alkylserines or N-protected peptides with a C-terminal 2-alkylserine residue. The rearrangement is fast and affords HPLC pure title compounds in 68-96% yield both from racemic and enantiomerically pure N-acyl-2-alkyl serines as well as from respective peptides.

13

Katarzyńska, J.; Jankowski, S.; Huben, K.; Leplawy, M. T.; Zabrocki, J. Abstracts of Papers, Peptides 2002 - Proceedings of the 27th European Peptide Symposium, Sorrento, Italy, Aug 31-Sept 6, 2002; Edizioni Ziino: Italy, 2002, Abstract 160.

16

Olczyk, S.; Kamińska, J. E.; Kamiński, Z. J. Abstracts of Papers, 18th Polish Peptide Symposium, Wrocaw, Poland, Sept 4-8, 2005; Abstract 188.