The reaction of benzoyl substituted heterocyclic ketene animals with 2, 4, 6,-trimethylbenzonitrile oxide

Article abstract of DOI:10.1080/00397919108021781

Heterocyclic ketene animals 1 or 2 reacted with 2, 4, 6-trimethylbenzonitrile oxide (3) to afford the 3,5-diaryl-4-(2-imidazolinyl)-isoxazoles 4 or 3,5-diaryl-4-(2-tetrahydropyrimidinyl)-isoxazoles 5. The mechanism of their formation was discussed.