F. Fabis et al., THIAISATOIC ANHYDRIDES - EFFICIENT SYNTHESIS UNDER MICROWAVE-HEATING CONDITIONS AND STUDY OF THEIR REACTIVITY, Tetrahedron, 54(36), 1998, pp. 10789-10800
2-thiaisatoic anhydride 1 and 3-thiaisatoic anhydride 2 were synthesiz
ed in large scale under microwave heating conditions with 85% and 67%
yields respectively. The reactivity of these two compounds was studied
towards various nucleophiles and appeared to be generally different f
rom that of isatoic anhydride : many new thiophene-2 and 3-carboxylic
acids were isolated with good yields as potential new pharmacological
scaffolds. (C) 1998 Elsevier Science Ltd. AU rights reserved.