Direkte<i>N</i>-Arylierung von Amiden: Eine Verbesserung der Goldberg-Reaktion
作者:Bernd Renger
DOI:10.1055/s-1985-31364
日期:——
Direct N-Arylation of Amides: An Improvement of the Goldberg-Reaction: The copper-catalyzed N-arylation of amides, the Goldberg reaction, usually requires drastic reaction conditions and produces only moderate yields of the desired products. Much better results can be achieved by modifying the reaction conditions, We used copper on silica as a catalyst and potassium acetate as a base and continuously removed the resulting acetic acid from the reaction mixture. In this way we gained high, in some cases nearly quantitative yields of the arylated or heteroarylated products.
Oxazolidin-2-one-Promoted CuI-Catalyzed Amidation of Aryl Halides and Cyclization of <i>o</i>-Halobenzanilides
作者:Xuan Jiang、Heng Ma
DOI:10.1055/s-2008-1072764
日期:2008.5
Oxazolidin-2-one was found to be a versatile and efficient ligand for the CuI-catalyzed amidation of aryl halides and the cyclization of ortho-halobenzanilides. Notably, the less active halides could also be applied successfully in the synthesis of benzoxazoles and benzothiazoles.
Pd-Catalyzed CN Bond Formation with Heteroaromatic Tosylates
作者:Mette L. H. Mantel、Anders T. Lindhardt、Daniel Lupp、Troels Skrydstrup
DOI:10.1002/chem.200903235
日期:2010.5.10
palladium(0)‐catalyzed amidation of heteroaromatic tosylates was successfully developed. The methodology proved to be effective for a variety of heteroaryl tosylates including the pyridine, pyrimidine, quinoline and quinoxaline ring systems. Successful carbonnitrogen bond formation with these heteroaryl tosylates could be performed with a wide range of primary amides, oxazolidinones, lactams, anilines and
A β-Keto Ester as a Novel, Efficient, and Versatile Ligand for Copper(I)-Catalyzed C−N, C−O, and C−S Coupling Reactions
作者:Xin Lv、Weiliang Bao
DOI:10.1021/jo070443m
日期:2007.5.1
Employing ethyl 2-oxocyclohexanecarboxylate as a novel, efficient, and versatile ligand, the copper-catalyzed coupling reactions of various N/O/S nucleophilic reagents with arylhalides could be successfully carried out under mild conditions. A variety of products including N-arylamides, N-arylimidazoles, aryl ethers, and aryl thioethers were synthesized in good to excellent yields.
使用2-氧代环己烷甲酸乙酯作为新型,高效且通用的配体,可以在温和的条件下成功进行各种N / O / S亲核试剂与芳基卤化物的铜催化偶联反应。合成了包括N-芳基酰胺,N-芳基咪唑,芳基醚和芳基硫醚在内的多种产品,收率良好。
Pharmacologically active lactam derivatives
申请人:THE WELLCOME FOUNDATION LIMITED
公开号:EP0106988A1
公开(公告)日:1984-05-02
Compounds of formula (I) and acid addition salts thereof are of use in medicine in the treatment of prophylaxis of pain, inflammation or fever.
The compounds of formula (I) may be prepared by methods analogues to those known in the art. When used in medicine, the compounds of formula (I) may be administered as the compound alone or as a pharmaceutical formulation together with a pharmaceutically acceptable carrier.