Copper-Catalyzed Coupling Reactions of Cyclobutanone Oxime Esters with Sulfur Nucleophiles at Room Temperature
作者:Mingchuang He、Zhaohua Yan、Fuyuan Zhu、Sen Lin
DOI:10.1021/acs.joc.8b02707
日期:2018.12.21
A copper-catalyzed iminyl radical-mediated C–C bond cleavage/cross-coupling tandem reaction of cyclobutanone oxime esters with aryl thiols in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) at room temperature was developed, and aryl cyanopropyl sulfides were smoothly synthesized in 20–88% yields. By altering the copper reagent and the molar ratio of cyclobutanone oxime ester/aryl thiol/DBU