Efficient Synthesis of Enantiopure Tretrahydroisoquinolines by Diastereoselective Intramolecular Heck Reaction Using α-Amino Acid Derivatives
作者:L. F. Tietze、O. Burkhardt
DOI:10.1055/s-1994-25690
日期:——
A new facile method for the synthesis of enantiopure 3,4-disubstituted tetrahydroisoquinolines 10a-d and 14 is described. Starting from commercially available α-amino acids the compounds 3a-d and 4 were prepared by an easy five-step sequence and afterwards cyclized selectively in an intramolecular Heck reaction using Pd(OAc)2, PPh3, TPAB and KOAc.