Dibenzofuran Synthesis: Decarbonylative Intramolecular C-H Arylation of Aromatic Esters

被引：15

作者：

Okita, Toshimasa ^{[1
]}

Komatsuda, Masaaki ^{[1
]}

Saito, Ami N. ^{[1
]}

Hisada, Tomoya ^{[1
]}

Takahara, Tomoaki T. ^{[1
]}

Nakayama, Keito P. ^{[1
]}

Isshiki, Ryota ^{[1
]}

Takise, Ryosuke ^{[2
]}

Muto, Kei ^{[1
]}

Yamaguchi, Junichiro ^{[1
]}

机构：

[1] Waseda Univ, Dept Appl Chem, Shinjuku Ku, 3-4-1 Ohkubo, Tokyo 1698555, Japan

[2] Nagoya Univ, Grad Sch Sci, Chikusa Ku, Nagoya, Aichi 4648602, Japan

来源：

ASIAN JOURNAL OF ORGANIC CHEMISTRY | 2018年 / 7卷 / 07期

关键词：

C-H activation; decarbonylation; dibenzofurans; ethers; palladium; POLYOXYGENATED DIBENZOFURANS; ARYLBORONIC ACIDS; NICKEL CATALYSIS; ALPHA-ARYLATION; ARYL CHLORIDES; CYCLIZATION; DERIVATIVES; ACTIVATION; HETEROCYCLES; OLEFINATION;

D O I：

10.1002/ajoc.201800207

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A method to provide dibenzofurans through decarbonylative C-H arylation is described. Diaryl ethers bearing an ester functional group, which can be readily prepared by a SNAr reaction, underwent intramolecular C-H arylation in the presence of a palladium catalyst to afford the corresponding dibenzofurans. Electron-rich bis(dialkylphosphine)s such as dcype were critical as the ligand, otherwise the reactions did not proceed at all. This is the first example of C-H arylation of aromatic esters with simple arenes utilized in intramolecular fashion.

引用

页码：1358 / 1361

页数：4

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