Cu(<scp>ii</scp>)/SPDO complex catalyzed asymmetric Baeyer–Villiger oxidation of 2-arylcyclobutanones and its application for the total synthesis of eupomatilones 5 and 6
作者:Chang-Sheng Zhang、Ya-Ping Shao、Fu-Min Zhang、Xue Han、Xiao-Ming Zhang、Kun Zhang、Yong-Qiang Tu
DOI:10.1039/d2sc02079c
日期:——
3-disubstituted cyclobutanones of Baeyer–Villigeroxidation catalyzed by a Cu(II)/SPDO complex is reported for the first time, producing normal lactones in excellent enantioselectivities (up to 96% ee) and regioselectivities (up to >20/1), along with unreacted ketones in excellent enantioselectivities (up to 99% ee). The current transformation features a wide substrate scope. Moreover, catalytic asymmetric total