N. Coskun et al., The first examples of di- and cis triaryl-3a,4,5,6-tetrahydroimidazo[1,5-b]isoxazoles and their ring-opening reactions, TETRAHEDR L, 41(28), 2000, pp. 5407-5409
The Delta(3)-imidazoline 3-oxides 1 undergo diastereoselective cycloadditio
n with dimethyl acetylenedicarboxylate 2 to give 3a,4,5,6-tetrahydroimidazo
[1,5-b]isoxazoles 3. Thermal and base induced ring-opening reactions of com
pounds 3 were demonstrated. (C) 2000 Elsevier Science Ltd. All rights reser
ved.