α-Selective Allylation of Azo Compounds Using Allylic Barium Reagents
作者:Akira Yanagisawa、Takuya Jitsukawa、Kazuhiro Yoshida
DOI:10.1055/s-0032-1318306
日期:——
The addition of allylic barium reagents to azo compounds was achieved with high α-regioselectivity. The double-bond geometry of allylic barium reagents was retained throughout the reaction at –78 °C and E- or Z-enriched allylic hydrazines were selectively obtained from the corresponding allylic barium reagents. An allylic hydrazine was efficiently converted into an allylic amine by reductive N–N bond
以高α-区域选择性将烯丙基钡试剂添加到偶氮化合物中。烯丙基钡试剂的双键几何结构在 –78 °C 的整个反应过程中保持不变,并且从相应的烯丙基钡试剂中选择性地获得富含 E 或 Z 的烯丙基肼。通过还原性 N-N 键断裂,烯丙基肼被有效地转化为烯丙基胺。