Conversion of 3-Bromo-2H-coumarins to 3-(Benzofuran-2-yl)-2H-cournarins under Palladium Catalysis: Synthesis and Photophysical Properties Study

被引：15

作者：

Galvani, Gilles ^{[1
]}

Reddy, K. Harsha Vardhan ^{[1
]}

Beauvineau, Claire ^{[2
,3
]}

Ghermani, NourEddine ^{[4
]}

Mahuteau-Betzer, Florence ^{[2
,3
]}

Alami, Mouad ^{[1
]}

Messaoudi, Samir ^{[1
]}

机构：

[1] Univ Paris 11, Univ Paris Saclay, CNRS, BioCIS, F-92296 Chatenay Malabry, France

[2] Univ Paris 11, Univ Paris Saclay, PSL Res Univ, CNRS,INSERM,Inst Curie, F-91400 Orsay, France

[3] Univ Paris 11, Univ Paris Saclay, CNRS, UMR 187,U1196, F-91405 Orsay, France

[4] Univ Paris Saclay, Univ Sud, CNRS, Inst Galien, F-92296 Chatenay Malabry, France

来源：

ORGANIC LETTERS | 2017年 / 19卷 / 04期

关键词：

COUMARIN DERIVATIVES; COUPLING REACTION; C-H; ACCESS; OLEFINATION; ARYLATION; ARENES; ESTERS; AGENTS; ACIDS;

D O I：

10.1021/acs.orglett.7b00069

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

An intriguing conversion of 3-bromo-2H-coumarins to 3-(benzofuran-2-yl)-2H-coumarins under palladium catalysis is reported. The process involves, from only one single starting material, three transformations and two bond formations in one pot: C-C bond formation via C-H activation and C-O bond formation through 2H-coumarin-to-benzofuran ring contraction under palladium catalysis. Moreover, the photophysical properties of all synthesized compounds were studied.

引用

页码：910 / 913

页数：4

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