A Lewis Acid Mediated Schmidt Reaction of Benzylic Azide: Synthesis of Sterically Crowded Aromatic Tertiary Amines
作者:Annamalai Murali、Manohar Puppala、Babu Varghese、Sundarababu Baskaran
DOI:10.1002/ejoc.201100674
日期:2011.9
efficient one-pot synthesis of sterically hindered aromatic tertiary amines through Lewis acid induced intermolecular Schmidt reaction of benzylic azides is described. In the presence of EtAlCl2, benzylic azide underwent a smooth Schmidt reaction to give the corresponding iminium ion, which, upon reduction with NaBH4 in situ, afforded the tertiary amine. The effects of substituents on the aromatic ring and
描述了通过路易斯酸诱导的苄基叠氮化物的分子间施密特反应有效地一锅合成空间位阻芳香叔胺。在 EtAlCl2 存在下,苄基叠氮化物进行平滑的施密特反应,得到相应的亚胺离子,在原位用 NaBH4 还原,得到叔胺。还研究了取代基对芳环的影响和烷基侧链的空间效应。