PPh<sub>3</sub>-Catalyzed Ring-Expansion Reactions of Sulfamate-Derived Cyclic Imines with Acetylenedicarboxylates
作者:Zhilin Yang、Hao Yu、Lei Zhang、Hang Wei、Yumei Xiao、Lanzhen Chen、Hongchao Guo
DOI:10.1002/asia.201301082
日期:2014.1
The PPh3‐catalyzed ring‐expansion reaction of sulfamate‐derived cyclic imines with acetylenedicarboxylates has been developed. The reaction works quite efficiently under very mild conditions to afford benzo[g][1,2,3]oxathiazocine‐4,5‐dicarboxylate 2,2‐dioxide derivatives in high yields.
已开发出由氨基磺酸衍生的亚胺基环状亚胺与乙炔二羧酸酯的PPh 3催化的扩环反应。该反应在非常温和的条件下非常有效地进行,以高收率提供了苯并[ g ] [1,2,3]草硫唑烷-4,5-二羧酸2,2-二氧化物衍生物。