Surface-assisted diastereoselective Ullmann coupling of bishelicenes

被引：32

作者：

Wackerlin, Christian ^{[1
]}

Li, Jingyi ^{[1
]}

Mairena, Anais ^{[1
]}

Martin, Kevin ^{[2
]}

Avarvari, Narcis ^{[2
]}

Ernst, Karl-Heinz ^{[1
,3
]}

机构：

[1] Empa, Swiss Fed Labs Mat Sci & Technol, Uberlandstr 129, CH-8600 Dubendorf, Switzerland

[2] Univ Angers, Lab Moltech Anjou, Angers, France

[3] Univ Zurich, Dept Chem, Zurich, Switzerland

来源：

CHEMICAL COMMUNICATIONS | 2016年 / 52卷 / 86期

关键词：

SCANNING-TUNNELING-MICROSCOPY; GRAPHENE NANORIBBONS; MOLECULAR CHIRALITY; METAL-SURFACES; POLYMERIZATION; COVALENT; POLYTHIOPHENE; MONOLAYERS; HELICENES; BIPHENYL;

D O I：

10.1039/c6cc05849c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ullmann coupling of chiral 2-bromo[4] helicene has been performed on a Cu(100) surface. Only homochiral 2,20-bis[4] helicene as the product is observed using STM. Such stereoselectivity is based on the fact that the surface will favour a configuration with the central part of the molecule on the surface, causing the outer ends to spiral away from the surface.

引用

页码：12694 / 12697

页数：4

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