Y. Nitta, Y. Arakawa
Apr 25, 1983
Citations
0
Influential Citations
2
Citations
Journal
Chemical & Pharmaceutical Bulletin
Abstract
Treatment of ethyl acetoacetate with anhydrous p-toluenesulfonic acid at room temperature led to ethyl isodehydroacetate (1) in high yield by acid-catalyzed condensation. On the other hand, in refluxing toluene, the unexpected ethyl ester of p-toluene-sulfonic acid (2) was formed in moderate yield. This constitutes a new direct esterification of arenesulfonic acids.