作者:Yan-Lei Zhang、Yong-Qiang Wang
DOI:10.1016/j.tetlet.2014.04.032
日期:2014.5
developed and shown to catalyze the direct and highly enantioselective cyclization of 2′-hydroxychalcones in imitation of the natural process of chalcone cyclization. The straightforward synthetic process occurs under mild reaction conditions, tolerates moisture and air, and gives an enantiomeric excess up to 99%. This approach provides a facile and efficient access to chiral flavanones.
已经开发了基于氨基喹啉和吡咯烷的新的有机催化剂家族,并显示其在模仿查尔酮环化的自然过程中催化2'-羟基查耳酮的直接和高度对映选择性环化。简单的合成过程在温和的反应条件下进行,可耐受水分和空气,对映体过量可达99%。这种方法为手性黄烷酮提供了一种简便而有效的途径。