We present herein the results of microwave promoted N-alkylations of isatin (1)with different alkyl, benzyl and functionalized alkyl halides. Reactions were carried out under different conditions, always employing methodologies compatible with MW assisted chemistry. Generation of isatin anion employing diverse bases and solvents or using the preformed isatin sodium salt was tested. The best results
The study of the reactivity of a series of isatin-1-acet-amides with hot alkoxides is described. These reactions lead to 1,4-dihydro-3-hydroxy-4-oxo-2-quinolinecarboxamides as main products, and 3-hydroxy-2-oxindoles as well as other minor products. Experimental results indicate that the starting compounds undergo transformation through two principal routes: ring expansion of isa-tin leading to quinoline