Asymmetric Carbon−Carbon Bond Formations by Conjugate Additions of Lithiated <i>N</i>-Boc Allylic Amines to Nitroalkenes: Enantioselective Synthesis of Functionalized Cyclopentanoids
作者:Timothy A. Johnson、Michael D. Curtis、Peter Beak
DOI:10.1021/ol026277g
日期:2002.8.1
[GRAPHICS]Allylic organolithiums generated by enantioselective deprotonation of N-Boc-N-(p-methoxyphenyl) allylic amines undergo conjugate additions with nitroalkenes to provide enecarbamates containing two contiguous stereogenic centers in good yields with high diastereoselectivities and enantioselectivities. Further elaboration of these adducts to enantioenriched substituted cyclopentanones and aminocyclopentanes is reported.