Synthesis of the four d,l-pairs of 2-amino-3-phenylnorbornane-2-carboxylic acids II. The use of 5(4H)-oxazolones as dienophiles.
作者:C. Cativiela、M.D. Díaz de Villegas、J.A. Mayoral、A. Avenoza、J.M. Peregrina
DOI:10.1016/s0040-4020(01)86269-4
日期:1993.1
The Diels-Alderreaction between both geometric isomers (Z)- or (E)-2-phenyl-4-benzylidene-5(4H)-oxazolone and cyclopentadiene is studied. The cycloadducts are converted into the aminoacids through simple reactions allowing the synthesis of the four d,l-pairs of 2-amino-3-phenylnorbornane-2-carboxylic acids.