E. Pombo-Villar, J. Boelsterli, M. Cid
May 12, 1993
Citations
0
Influential Citations
21
Citations
Journal
Helvetica Chimica Acta
Abstract
The diastereoisomeric 2-substituted 2-azabicyclo[2.2.1]hept-5-enes 2–4 were prepared by aza-Diels-Alder reaction of cyclopentadiene with the corresponding methaniminium ions. Their relative configurations were deduced using 1H, 1H-ROESY experiments, and their absolute configurations were assigned from the crystal structure of the aziridinium derivative (−)-5. The absolute configuration of (+)-1, i.e. (1R), was assigned by CD spectroscopy.