Abstract
Abstract A novel, simple, one-pot procedure for the synthesis of new 7H-naphtho[1,8-ef]pyrimido[4,5-b]azocine-7,10,12,13(8H,9H,11H)-tetraones by the addition reaction of acenaphthoquinone and 6-aminouracil derivatives followed by oxidative cleavage of the corresponding intermediate product in the presence of lead(IV) acetate is reported. Clean reactions, excellent yields, and mild conditions are the main features of this method. The structural assignments are supported by 1H NMR, 13C NMR, and X-ray crystallography data.
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