A Simple and Efficient Oxidative Coupling of Aromatic Nuclei Mediated by Manganese Dioxide
作者:Qingmin Wang、Kailiang Wang、Yanna Hu、Zheng Li、Meng Wu、Zhihui Liu、Bo Su、Ao Yu、Yu Liu
DOI:10.1055/s-0029-1219237
日期:2010.4
Oxidative intramolecular coupling of the aryl rings of various stilbenes for direct construction of the phenanthrene ring system is promoted efficiently by manganese dioxide-trifluoroacetic acid at room temperature in excellent yields. This approach is also applied to the intermolecular biaryl coupling of 2-naphthols, 2-naphthalenethiol, 2-naphthylamine, a phenol ether and a phenol under very mild
m-CPBA/TFA: an efficient nonmetallic reagent for oxidative coupling of 1,2-diarylethylenes
作者:Kailiang Wang、Yanna Hu、Meng Wu、Zheng Li、Zhihui Liu、Bo Su、Ao Yu、Yu Liu、Qingmin Wang
DOI:10.1016/j.tet.2010.09.101
日期:2010.11
A mild synthesis of a series of phenanthrenes with different substituents on the phenanthrene ring is described. The method involves intramolecular oxidative coupling of a variety of 1,2-diarylethylene derivatives in the presence of m-chloroperoxybenzoic acid (m-CPBA) in trifluoroacetic acid (TFA) to yield phenanthrenes in high yields. The present approach solves a key step for the synthesis of polycyclic
Following the screening of an in-house natural product database, 1-phenanthryltetrahydroisoquinoline analogues were synthesized as novel PAK4 inhibitors.