Istituto di Chimica Farmaceutica, Università degli Studi di Perugia, via Del Liceo, 06100 Perugia, Italy
Institut de Chimie des Substances Naturelles, C.N.R.S. 91190 Gif-sur-Yvette, France
Abstract:
Irradiation of esters
derived from carboxylic acids and
-hydroxypyridine-2-thione
in the presence of anhydrous camphorsulphonic acid and various heteroaromatic systems including purines affords the corresponding adducts in moderate to good yield.