Abstract
The 1,3-dipolar cycloaddition of (
R)-1-(1-phenylethyl)-3-[(
E)-arylmethylidene]tetrahydro-4(1
H)-pyridinones to nitrile oxides proceeds chemo-, regio-, and stereoselectively affording moderate yields of enantiomerically pure spiro heterocycles comprising piperidine and isoxazoline/dioxazole rings.