Recent interest in ionicliquids has developed various uses for them, including some applications by synthetic chemists. Ionicliquids have joined the potential list of non-traditional solvents for Diels–Alderreactions. We report here our own efforts to examine the rates and selectivities of carbon Diels–Alderreactions. Our investigations show that excellent diastereoselective and enantioselective
Enantiomerically pure sultams (+)-4 and (−)-4 were synthesized from tricyclic sultone 1via a four-step reaction sequence. Their uses as newchiralauxiliaries in asymmetric Diels-Alderreactions with diastereoselectivity up to 94:6 are presented.