Reactions of 1,5-diketones with 2-aminobenzyl alcohol and 2-aminomethylaniline and behavior of the products in oxidative coupling
摘要:
Reactions of some 1,5-diketones with 2-aminobenzyl alcohol and 2-aminomethylaniline follow double cyclization scheme with formation of pyridobenzoxazine and pyridoquinazoline derivatives, respectively. Oxidative coupling of the cyclization products with CH acids occurs at the 4-position of the pyridine ring.