Ammonium salts as an inexpensive and convenient nitrogen source in the Cu-catalyzed amination of aryl halides at room temperature
作者:Jinho Kim、Sukbok Chang
DOI:10.1039/b804637a
日期:——
Convenient and inexpensive ammonium salts such as NH(4)Cl and aqueous NH(3) solution are found to be readily utilized in the Cu-catalyzed room temperature N-arylation of aryl halides, providing N-unprotected aniline derivatives in high yields.
[EN] NON-ANNULATED THIOPHENYLAMIDES AS INHIBITORS OF FATTY ACID BINDING PROTEINI(FABP) 4 AND/OR 5<br/>[FR] THIOPHÉNYLAMIDES NON ANNELÉS UTILISÉS EN TANT QU'INHIBITEURS DE LA PROTÉINE DE LIAISON À UN ACIDE GRAS (FABP) 4 ET/OU 5
申请人:HOFFMANN LA ROCHE
公开号:WO2014040938A1
公开(公告)日:2014-03-20
The invention provides novel compounds having the general formula (I), wherein R1, R2, R3, R4, R5, R6 , R7, A, E and n are as described herein, compositions including the compounds and methods of using the compounds.
Pd-Catalyzed Silicon Hydride Reductions of Aromatic and Aliphatic Nitro Groups
作者:Ronald J. Rahaim、Robert E. Maleczka
DOI:10.1021/ol052120n
日期:2005.10.1
[reaction: see text] Room-temperature reduction of aromaticnitrogroups to amines can be accomplished in high yield, with wide functional group tolerance and short reaction times (30 min) using a combination of palladium(II) acetate, aqueous potassium fluoride, and polymethylhydrosiloxane (PMHS). Replacing PMHS/KF with triethylsilane allows aliphatic nitrogroups to be reduced to their hydroxylamines.
Copper(I)-Catalyzed Amination of Aryl Halides in Liquid Ammonia
作者:Pengju Ji、John H. Atherton、Michael I. Page
DOI:10.1021/jo301204t
日期:2012.9.7
of amination of iodobenzene in liquid ammonia is first order in copper(I) catalyst concentration. The small Hammett ρ = 0.49 for the amination of 4-substituted iodobenzenes in liquid ammonia at 25 °C indicates that the C–I bond is not significantly broken in the transition state structure and that there is a small generation of negative charge in the aryl ring, which is compatible with the oxidative
Bis(diisopropylphosphinomethyl)amine Nickel(II) and Nickel(0) Complexes: Coordination Chemistry, Reactivity, and Catalytic Decarbonylative C–H Arylation of Benzoxazole
作者:Achim Kruckenberg、Hubert Wadepohl、Lutz H. Gade
DOI:10.1021/om400711d
日期:2013.9.23
bisphospholane analogues. The coordinationchemistry of neutral nickel(II) complexes [(RDIP)NiCl2], [(RDIP)Ni(CH3)2], [(iPrDIP)Ni(Cl)CH2Si(CH3)3], and [(RDIP)Ni(CH2Ph)2], as well as coordinatively unsaturated cationic nickel(II) complexes [(RDIP)Ni(THF)CH3]+BArF– and [(RDIP)NiCH2Ph]+BArF–, has been studied by spectroscopic and X-ray diffraction methods. The cationic methyl complexes reacted cleanly with 2-butyne