Efficient Synthesis of Phenanthridines Using Hendrickson Reagent Initiated Cascade Reaction under Mild Conditions
作者:Lin Chen、Zhu-Jun Yao、Jie Xi、Qing-Li Dong、Guan-Sai Liu、Shaozhong Wang
DOI:10.1055/s-0030-1258081
日期:2010.7
A number of variously substituted phenanthridines have been synthesized using the newly developed methodology under mild conditions. The Hendrickson reagent initiated cascade annulation, which is composed of a mild conversion of stable amide precursor to highly reactive imido-carbonium intermediate and a subsequent intramolecular Friedel-Crafts reaction, successfully served as the key method.
Highly Effective Pd-Catalyzed ortho Olefination of Acetanilides: Broad Substrate Scope and High Tolerability
作者:Byung Seok Kim、Chungsik Jang、Dong Jin Lee、So Won Youn
DOI:10.1002/asia.201000613
日期:2010.11.2
Bring it on! An effective Pd‐catalyzed orthoolefination of various acetanilides has been developed. This transformation has a broadsubstratescope and wide functional‐group tolerability, regardless of the electronic and steric properties of acetanilidesubstrates, providing a straightforward access to highly functionalized arenes.