Palladium-Catalyzed Selective Aryl Ring C-H Activation of N-Acyl-2-aminobiaryls: Efficient Access to Multiaryl-Substituted Naphthalenes

被引:23
|
作者
Annamalai, Pratheepkumar [1 ]
Chen, Wu-Yin [1 ]
Raju, Selvam [1 ]
Hsu, Kou-Chi [1 ]
Upadhyay, Nitinkumar Satyadev [2 ]
Cheng, Chien-Hong [2 ]
Chuang, Shih-Ching [1 ]
机构
[1] Natl Chiao Tung Univ, Dept Appl Chem, Hsinchu 30003, Taiwan
[2] Natl Tsing Hua Univ, Dept Chem, Hsinchu 30013, Taiwan
关键词
alkynes; aromatic homologation; C-H activation; naphthalenes; palladium; N BOND FORMATION; OXIDATIVE ANNULATION; ONE-POT; MOLECULAR PACKING; DIRECT ARYLATION; DIRECTING GROUP; ALKYNES; FUNCTIONALIZATION; DERIVATIVES; CLEAVAGE;
D O I
10.1002/adsc.201600488
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Palladium-catalyzed cycloaromatization of N-acyl-2-aminobiaryls, through a sequence of ortho C-H bond activation/alkyne insertion/meta C-H bond activation/alkyne insertion, was developed. An efficient synthesis of multiaryl-substituted naphthalenes, N-[2-(5,6,7,8-tetraarylnaphthalen-1-yl) aryl] acetamides, was demonstrated using molecular oxygen as the sole oxidant. Furthermore, through Buchwald's synthetic protocol, two compounds were converted into corresponding fluorescent carbazoles in 30-40% yield by intramolecular C-N bond formation.
引用
收藏
页码:3642 / 3648
页数:7
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