Structural Identification between Phthalazine-1,4-Diones and N-Aminophthalimides via Vilsmeier Reaction: Nitrogen Cyclization and Tautomerization Study
作者:Cheng-Yen Chung、Ching-Chun Tseng、Sin-Min Li、Shuo-En Tsai、Hui-Yi Lin、Fung Fuh Wong
DOI:10.3390/molecules26102907
日期:——
carry out the 5-exo or 6-endo nitrogen cyclization under the different reaction conditions. Based on the control experimental results, 6-endo thermodynamic hydrohydrazination and kinetical 5-exo cyclization reactions were individually selective formation. Subsequently, Vilsmeier amidination derivatization was successfully developed to probe the structural divergence between N-aminophthalimide 2 and phthalazine
Synthesis of N–N Axially Chiral Pyrrolyl-oxoisoindolin via Isothiourea-Catalyzed Acylative Dynamic Kinetic Resolution
作者:Tong-Tong Wang、Jun Cao、Xin Li
DOI:10.1021/acs.orglett.4c02031
日期:2024.7.26
The development of methods for the asymmetricsynthesis of N–N axial chirality remains elusive and challenging. Here, we disclose a method for the construction of N–N axially chiral pyrrolyl-oxoisoindolins along with central chiralityvia the isothiourea (ITU)-catalyzed acylative dynamickineticresolution (DKR). Axial chirality was introduced into the acylative DKR of hemiaminals for the first time