NHC-catalyzed regiodivergent syntheses of difunctionalized 3-pyrazolidinones from α-bromoenal and monosubstituted hydrazine
作者:Chenxia Yu、Shide Shen、Ligen Jiang、Jing Li、Yumiao Lu、Tuanjie Li、Changsheng Yao
DOI:10.1039/c7ob02041d
日期:——
A formal [3 + 2] annulation of α-bromoenal with monosubstituted hydrazine could give 1,5 or 2,5-difunctionalized 3-pyrazolidinone regiodivergently by tuning the structure of the N-Heterocyclic Carbene (NHC) catalyst.