Thermally controlled decarboxylative [4 + 2] cycloaddition between alkoxyoxazoles and acrylic acid: expedient access to 3-hydroxypyridines

Org Lett. 2013 May 17;15(10):2530-3. doi: 10.1021/ol4010195. Epub 2013 May 6.

Abstract

A modified Kondrat'eva cycloaddition involving an unprecedented thermally controlled metal-free decarboxylative aromatization affords an expedient access to natural 3-hydroxypyridine/piperidine systems.