Abstract
Synthesis of a series of novel spiro[3,4-diaryl-4,5-dihydroisoxazole-5,31-flavan-41-one] has been accomplished in good yields by the regioselective 1,3-dipolar cycloaddition reaction of nitrile oxide to 3-arylmethylidene flavan-4-ones.
Acknowledgments
SM thanks Council of Scientific and Industrial Research, New Delhi for the award of Senior Research Fellow. We also acknowledge UGC and CSIR for the financial assistance.