Gold-Catalyzed Oxidative Cyclization of Chiral Homopropargyl Amides: Synthesis of Enantioenriched γ-Lactams
作者:Chao Shu、Meng-Qi Liu、Shan-Shan Wang、Long Li、Long-Wu Ye
DOI:10.1021/jo400127x
日期:2013.4.5
A gold-catalyzed tandem cycloisomerization/oxidation of homopropargyl amides has been developed, which provides ready access to synthetically useful chiral γ-lactams with excellent ee by combining the chiral tert-butylsulfinimine chemistry and gold catalysis. The utility of this methodology has also been demonstrated in the synthesis of biologically active compound S-MPP and natural product (−)-bgugaine
已开发了金催化的高炔丙基酰胺的串联环异构化/氧化反应,通过结合手性叔丁基亚磺酰亚胺化学和金催化作用,可以方便地获得具有出色ee的合成有用的手性γ-内酰胺。这种方法的实用性也已在生物活性化合物S -MPP和天然产物(-)-古吉甘碱的合成中得到证明。使用容易获得的起始原料,简单的步骤以及温和的反应条件是该方法的其他重要特征。