Quinazoline-2,4-diones are of considerable interest due to their wide pharmacological properties. Here, we have described an environmentally friendly method for the one-pot synthesis of 2,4-(1H,3H)-quinazolinediones from the reaction of anthranilic acid derivatives with urea in H2O media under microwave irradiations. This method is simple, safe, and fast which produces high yield of products without use of any catalyst.
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Nikpour et al. (2005) studied this question.
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