Enantioselective radical reactions. Evaluation of nitrogen protecting groups in the synthesis of β2-amino acids
作者:Mukund P. Sibi、Kalyani Patil
DOI:10.1016/j.tetasy.2006.01.018
日期:2006.2
We have investigated the effect of nitrogen protecting groups in radical addition trapping experiments leading to beta(2)-amino acids. Of the three N-protecting groups examined, the phthalimido group was optimal with respect to both yields and enantioselectivity. Additionally, radical additions to more complex acrylates were also investigated, which provided access to functionalized beta(2)-amino acids in modest selectivity. (c) 2006 Elsevier Ltd. All rights reserved.