Efficient Synthesis of Benzothiophenes by an Unusual Palladium-Catalyzed Vinylic C-S Coupling

被引:193
作者
Bryan, Christopher S. [1 ]
Braunger, Julia A. [1 ]
Lautens, Mark [1 ]
机构
[1] Univ Toronto, Dept Chem, Davenport Labs, Toronto, ON M5S 1A1, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
cross-coupling; palladium; sulfur heterocycles; synthetic methods; tandem catalysis; ARYL HALIDES; BOND FORMATION; ONE-POT; PD; THIOLS; LIGAND; CARBON; ARYLATION; SULFIDES; DERIVATIVES;
D O I
10.1002/anie.200902843
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The simultaneous construction of a C-S and a C-C bond under catalytic conditions forms the basis of an efficient route to diversely functionalized benzothiophenes from gem-dihalovinyl thiophenols. The C-C bond can be formed in this tandem catalytic process with an organoboron reagent as shown in the scheme (R1=H, Me, F, Cl, Br,-OCH2O-; R2=H, Me; R 3=aryl, heteroaryl, alkenyl, alkyl), or by Heck or Sonogashira coupling with an alkene or alkyne. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:7064 / 7068
页数:5
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