Copper-catalyzed fragmentation-rearrangement sequence of cycloketoxime esters
作者:Yixiao Wu、Binlin Zhao、Zhuangzhi Shi、Yu Yuan
DOI:10.1016/j.tet.2019.130873
日期:2020.1
Copper-catalyzed fragmentation-rearrangement sequence of cycloketoxime esters is reported. This strategy provides direct access to diverse ring-opening acyloxylation nitriles avoiding the use of toxic cyanic reagents with good atom economy and well functional group tolerance. Experimental exploration showed that tetrabutylammonium bromide (TBAB) played an irreplaceable role in this transformation. Based