A cascade iridium-catalysed oxindolesynthesis was achieved using pyridyl-protected anilines and bis(2,2,2-trifluoroethyl) 2-diazomalonate. The developed protocol is simple and scalable, and has a broad scope and excellent regioselectivity. The pyridyl directing group can easily be removed. The method was further extended to give C-7-functionalized oxindole derivatives in a straightforward manner.
Highly Reactive, General and Long-Lived Catalysts for Palladium-Catalyzed Amination of Heteroaryl and Aryl Chlorides, Bromides, and Iodides: Scope and Structure–Activity Relationships
作者:Qilong Shen、Tokutaro Ogata、John F. Hartwig
DOI:10.1021/ja077074w
日期:2008.5.1
chelating alkylphosphines for the amination of heteroaryl and aryl chlorides, bromides, and iodides. In the presence of this catalyst, aryl and heteroarylchlorides, bromides, and iodides react with many primary amines in high yields with part-per-million quantities of palladium precursor and ligand. Many reactions of primary amines with both heteroaryl and aryl chlorides, bromides, and iodides occur to
A copper modified phosphorus doped g-C3N4 (Cu/P-CN) has been prepared and identified as an efficient catalyst for the synthesis of N-arylpyridin-2-amine derivatives by the reaction of 2-aminopyridine and aryl boronic acid under the irradiation of blue light.
Synthesis and characterization of aryl substituted bis(2-pyridyl)amines and their copper olefin complexes: Investigation of remote steric control over olefin binding
作者:John J. Allen、Christopher E. Hamilton、Andrew R. Barron
DOI:10.1039/c0dt00608d
日期:——
about the amine nitrogen. The geometry about copper centers in the dimericcomplexes 9–12 is distorted trigonal bypyramidal, with the axial positions occupied by one of the two pyridyl nitrogens and one of the bridgingligands (i.e., Cl or OH). The copper atoms in each of the olefin complexes 13–17 are coordinated to the two pyridine nitrogen atoms and the appropriate olefin; consistent with a pseudo
类型的芳基官能化吡啶胺2- i PrC 6 H 4 N(H)py(1)和双(2-吡啶基)胺ArN(py)2 为了 氩气= Mes(2),2,6-Et 2 C 6 H 3(3),2- i PrC 6 H 4(4),2,6- i Pr 2 C 6 H 3(5)和1-萘酚(6),已经准备好了钯催化的苯胺与苯胺的交叉偶联 2-溴吡啶,并已通过1 H和13 C NMR NMR,FTIR,MS和TGA进行了表征。这些新的N-芳基二配合物(2-吡啶基)胺已为酸盐[H ARN(PY)制备2 }] BF 4,其中氩气= Mes(7)和2- i PrC 6 H 4(8),以及二聚体桥接复合物[Cu ArN(py)2 }(μ-X)(Y)] 2 X /ÿ = 氯-和氩气= Ph(9),2- i PrC 6 H 4(10)和1-萘酚(11),除了X =哦−,ÿ= H 2 O和氩气=梅斯(12)。的烯烃配合物[铜(AR-DPA)(苯乙烯)]