Enantioselective Iridium-Catalyzed Allylic Amination of Ammonia and Convenient Ammonia Surrogates
作者:Mark J. Pouy、Andreas Leitner、Daniel J. Weix、Satoshi Ueno、John F. Hartwig
DOI:10.1021/ol701562p
日期:2007.9.1
Iridium-catalyzed, asymmetric allylation of ammonia as a nucleophile occurs with stereoselectivity to form a symmetric diallylamine, and related allylation of the inexpensive ammonia equivalent potassium trifluoroacetamide or the highly reactive ammonia equivalent lithium di-tert-butyliminodicarboxylate forms a range of conveniently protected, primary, alpha-branched allylic amines in high yields,
铱作为亲核试剂进行铱催化的不对称烯丙基化反应,并具有立体选择性,形成对称的二烯丙基胺,廉价的氨当量三氟乙酰胺钾或高反应性氨当量二叔丁基亚氨基二羧酸锂的相关烯丙基化反应形成了一系列易于保护的伯胺基,α-支链烯丙基胺的高收率,高支化至线性的区域选择性和高对映体过量。氨当量的反应用由含有单一立体化学元素的亚磷酰胺生成的催化剂进行。