The use of nonactivated iminodienophiles in the stereoselective aza-Diels–Alder reaction
作者:Anna Trifonova、Pher G Andersson
DOI:10.1016/j.tetasy.2003.12.011
日期:2004.2
This paper describes the preparation of nitrogen-containing bicycles by the aza-Diels–Alder reaction of nonactivated iminodienophiles and cyclopentadiene. Readily available starting materials such as (S)-(−)-lactate and l-amino acids were used for the preparation of chiral aldehydes with high enantiomeric excess. The improved oxidation procedure by Dess–Martinperiodinane was employed for the synthesis