Asymmetric synthesis of cycloaliphatic α-amino acids with a norbornane skeleton
作者:Carlos Cativiela、Pilar López、JoséA. Mayoral
DOI:10.1016/0957-4166(90)90038-c
日期:1990.1
The asymmetric synthesis of endo and exo 2-aminonorbornane-2-carboxylic acids is carried out via the Diels-Alderreaction between cyclopentadiene and (−)-menthyl N-acetyl-α,β-dehydroalaninate. It is shown that this dienophile is more reactive than the corresponding methyl ester, which opens the way for the use of chiral N-acetyl-α,β-dehydroalaninates as dienophiles in asymmetricDiels-Alder reactions