Synthesis of γ,δ-Unsaturated and δ,ε-Unsaturated α-Amino Acids from Fragmentation of γ- and δ-Lactones
作者:James E. Tarver、Madeleine M. Joullié
DOI:10.1021/jo035401m
日期:2004.2.1
The method employs a six-membered ring template to control the relative stereochemistry and introduction of the functional groups. Ultimately, Pd-catalyzed fragmentation of the lactone provided γ,δ-unsaturated and δ,ε-unsaturated α-amino acids. A Pd-catalyzed ring opening of a γ-lactone is also reported.
以外消旋方式合成了环豆素A(1)的非编码氨基酸。该方法采用六元环模板来控制相对立体化学和官能团的引入。最终,Pd催化的内酯片段化提供了γ,δ-不饱和和δ,ε-不饱和的α-氨基酸。还报道了γ-内酯的Pd催化的开环。