Catalytic Enantioselective Synthesis of 3,4,5-Trisubstituted Isoxazoline <i>N</i>
-Oxides and Regioselective Synthesis of 3,4,5-Trisubstituted Isoxazoles
作者:Subas Chandra Sahoo、Subhas Chandra Pan
DOI:10.1002/ejoc.201801693
日期:2019.2.14
A convenient catalytic asymmetric synthesis of 3,4,5‐trisubstituted isoxazoline N‐oxides and regioselective synthesis of 3,4,5‐trisubstitutedisoxazoles has been developed.
Enantioselective total synthesis of furofuran lignans <i>via</i> Pd-catalyzed asymmetric allylic cycloadditon of vinylethylene carbonates with 2-nitroacrylates
作者:Can Zhao、Ijaz Khan、Yong Jian Zhang
DOI:10.1039/d0cc05640e
日期:——
Pd-catalyzed asymmetric allylic cycloaddition of vinylethylene carbonates (VECs) with 2-nitroacrylates under mild conditions. By using this asymmetric catalytic reaction as a key step, several furofuran lignans with stereodivergency have been effectively synthesized through 5- or 6-step sequences from readily available starting materials.