A palladium nanoparticle-catalyzed aryl–amine coupling reaction: high performance of aryl and pyridyl chlorides as the coupling partner
作者:Debkumar Nandi、Rafique Ul Islam、Nishu Devi、Samarjeet Siwal、Kaushik Mallick
DOI:10.1039/c7nj03447d
日期:——
Carbon nitride (CN)-supported nanosized palladium particles, Pd–CN, have been found to be an active catalyst system for the amination of aryl and pyridyl chloride moieties in the presence of dialkyl amine under mild reaction conditions. The recyclability study of the reaction shows the stable performance of the catalyst without a significant loss of catalytic activity for a couple of cycles.
Nucleophilic Substitution of Aromatic Halides with Amines under High Pressure
作者:Toshikazu Ibata、Yasushi Isogami、Jiro Toyoda
DOI:10.1246/cl.1987.1187
日期:1987.6.5
The reaction of aromatic chlorides, bromides and iodides with various primary or secondary amines in a tetrahydrofuran solution under highpressure of 6–12 kbar gave the corresponding secondary and tertiary aromatic amines. The yields of the products depend on the bulkiness of amines used. 1,4-Diazabicyclo[2.2.2]octane and quinuclidine gave N-aryl quarternary ammonium halides in high yields in contrast
在 6-12 kbar 的高压下,芳族氯化物、溴化物和碘化物与各种伯胺或仲胺在四氢呋喃溶液中反应,得到相应的仲胺和叔芳胺。产品的产率取决于所用胺的体积。与无环叔胺的低反应性相比,1,4-二氮杂双环 [2.2.2] 辛烷和奎宁环以高产率得到 N-芳基季铵卤化物。
Aqueous Hydroxide as a Base for Palladium-Catalyzed Amination of Aryl Chlorides and Bromides
作者:Ryoichi Kuwano、Masaru Utsunomiya、John F. Hartwig
DOI:10.1021/jo0258913
日期:2002.9.1
amination of aryl halides in the presence of inexpensive and air-stable alkali metal hydroxide bases and Pd[P(t-Bu)3]2 as catalyst gave arylamines in high yields. The reactions were conducted with a catalytic amount of cetyltrimethylammonium bromide as phase-transfer agent and either aqueous hydroxide or solid hydroxide in the presence of water. This combination of alkali metal hydroxide base, H2O, and
A transition metal‐freeN‐arylation of primary and secondary amines with diaryliodonium salts is presented. Both acyclic and cyclic amines are well tolerated, providing a large set of N‐alkyl anilines. The methodology is unprecedented among metal‐free methods in terms of amine scope, the ability to transfer both electron‐withdrawing and electron‐donating aryl groups, and efficient use of resources
Aminoalkyl-substituted aromatic bicyclic compounds, methods for their preparation and their use as pharmaceuticals
申请人:——
公开号:US20030212070A1
公开(公告)日:2003-11-13
The present invention relates to aminoalkyl-substituted aromatic bicyclic compounds of formula I,
1
which are valuable pharmaceutically active compounds that are suitable, for example, for the treatment of obesity, type II diabetes, arteriosclerosis, high blood pressure, paresthesia, depression, anxiety, anxiety neuroses, schizophrenia, disorders associated with the circadian rhythm, and drug abuse, as well as normalizing lipid metabolism.