Palladium-Catalyzed Aerobic Dehydrogenative Aromatization of Cyclohexanone Imines to Arylamines
摘要:
Dehydrogenative aromatization of cyclohexanone imines to arylamines has been achieved using a palladium catalyst under aerobic conditions. The reaction is applicable to a variety of imines that are either preformed or generated in situ from cyclohexanone derivatives and aryl or alkylamines.
Triaminophosphine ligands for carbon-nitrogen and carbon-carbon bond formation
申请人:Iowa State University Research Foundation, Inc.
公开号:US07385058B1
公开(公告)日:2008-06-10
Methods and compounds are provided for the formation of carbon-nitrogen or carbon-carbon bonds comprising reacting an amine or an aryl boronic acid with an aryl halide in the presence of a palladium catalyst, a base, and a compound of formula II:
Amination with PdNHC Complexes: Rate and Computational Studies Involving Substituted Aniline Substrates
作者:Ka Hou Hoi、Selçuk Çalimsiz、Robert D. J. Froese、Alan C. Hopkinson、Michael G. Organ
DOI:10.1002/chem.201102428
日期:2012.1.2
chloride to be electron poor, although oxidativeaddition is not rate limiting. Anilines couple best when they are electron rich, which would seem to discount deprotonation of the intermediate metal ammonium complex as being rate limiting in favour of reductive elimination. In previous studies with secondary amines using PEPPSI complexes, deprotonation was proposed to be the slow step in the cycle. These
Ligand-Enabled Gold-Catalyzed C(sp<sup>2</sup>)–N Cross-Coupling Reactions of Aryl Iodides with Amines
作者:Manjur O. Akram、Avishek Das、Indradweep Chakrabarty、Nitin T. Patil
DOI:10.1021/acs.orglett.9b03082
日期:2019.10.4
example of ancillary (P,N)-ligand-enabled gold-catalyzed C-N cross-couplingreactions of aryl iodides with amines is reported. The high generality of the reaction in de novo synthesis, late-stage modifications, and cascade processes to access functionalized indolinones and carbazoles underscores the synthetic potential of the presented strategy. Monitoring the reaction with ESI-HRMS and NMR provided strong
Scope and Limitations of the Pd/BINAP-Catalyzed Amination of Aryl Bromides
作者:John P. Wolfe、Stephen L. Buchwald
DOI:10.1021/jo9916986
日期:2000.2.1
Mixtures of Pd(2)(dba)(3) or Pd(OAc)(2) and BINAP catalyze the cross-coupling of amines with a variety of arylbromides. Primary amines are arylated in high yield, and certain classes of secondary amines are also effectively transformed. The process tolerates the presence of several functional groups including methyl and ethyl esters, enolizable ketones, and nitro groups provided that cesium carbonate is
Co<sup>II</sup> immobilized on an aminated magnetic metal–organic framework catalyzed C–N and C–S bond forming reactions: a journey for the mild and efficient synthesis of arylamines and arylsulfides
作者:Arezou Mohammadinezhad、Batool Akhlaghinia
DOI:10.1039/c9nj03400e
日期:——
which benefit from small nanocrystalline size (10–30 nm, according to the XRD and TEM data) in combination with the coexistence of magnetic nanoparticles, a metal–organicframework, and cobalt species, were found to be an excellent environment catalyst to promote the C–N and C–S cross coupling reactions. A wide range of functional substrates including electron-withdrawing and electron-donating aryl halides