A simple and efficient procedure for the construction of 6,6a-dihydroisoindolo[2,1-a]quinazoline-5,11-dione and 5-phenylisoindolo[2,1-a]quinazolin-11(6aH)-one derivatives in acetic acid under catalyst-free conditions is described. Attractive features of this methodology are its versatility, ready availability of starting materials and the efficiency in creating a complex core in a single operation.
Key words
one-pot synthesis - catalyst-free - 6,6a-dihydroisoindolo[2,1-
a]quinazoline-5,11-dione - 5-phenylisoindolo[2,1-
a]quinazolin-11(6a
H)-one - 2-formyl benzoic acid