作者:Iain Coldham、Steven Robinson、Carl Baxter
DOI:10.1055/s-0032-1317114
日期:——
amines were prepared by asymmetric deprotonation of benzylamines using n-BuLi and (–)-sparteine to give chiral organolithiums to which were added prenyl bromide. Removal of the Boc protecting group gave anilines that were found to undergo Bronsted acid catalyzed or iodine-mediated cyclization to give aryl-substituted pyrrolidine heterocyclic products with high enantioselectivity.
使用 n-BuLi 和 (-)-sparteine 通过苄胺的不对称去质子化得到高烯丙基胺,得到手性有机锂,并在其中加入异戊二烯溴。去除 Boc 保护基团得到苯胺,发现该苯胺经过布朗斯台德酸催化或碘介导的环化,得到具有高对映选择性的芳基取代的吡咯烷杂环产物。