Abstract
The aza‐Diels‐Alder reactions of (E)‐2‐(phenylthio)‐1,3‐pentadiene (2) with iminium salts gave the 2,6‐disubstituted tetrahydropyridines 3–8. Factors influencing the stereochemistry and reactivity of these reactions were also studied.
Acknowledgment
Financial support of this work by the National Science Council of the Republic of China is gratefully acknowledged (NSC 91‐2113‐M‐030‐005).