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A novel method for the synthesis of diarylylnaphtho bis([1,3]oxazine) dione/thione derivatives is established by employing one-pot three-component reaction of naphthalene-1,8-diol/naphthalene-1,5-diol, aromatic aldehydes, and urea or thoiurea using a catalytic amount of 4-hydroxypyridinium antimony tetrachloride functionalized silica gel in methanol in excellent yields. The FTIR,  1 H NMR, and  13 C NMR confirm the structures of the products. After synthesis of the compounds, their potential antibacterial and antifungal activities were evaluated, and result showed significant antibacterial activities.

polycyclic aromatic compounds

4-Hydroxypyridinium Antimony Tetrachloride-Functionalized Silica Gel Nanoparticles-Catalyzed One-Pot Synthesis of Naphtho-Bis-[1,3]-Oxazin-3-One/Thione