Synthesis of Bridged Cycloisoxazoline Scaffolds via Rhodium-Catalyzed Coupling of Nitrones with Cyclic Carbonate
作者:Man Zhu、Mengdie Zhu、Fangjie Wei、Chongjing Shao、Xingwei Li、Bingxian Liu
DOI:10.1021/acs.joc.3c01840
日期:2023.12.1
Bridged isoxazolidines were synthesized via Rh(III)-catalyzed C–H allylation of α-aryl nitrones with 5-methylene-1,3-dioxan-2-one. The nitrone group serves as a directing group and 1,3-dipole in the C–H activation/[3 + 2] cycloaddition cascade, exhibiting excellent chemo- and stereoselectivity along with good functional group compatibility. The resulting skeletal structure was conveniently modified