Iodine-catalyzed synthesis of <i>N</i>,<i>N</i>′-diaryl-<i>o</i>-phenylenediamines from cyclohexanones and anilines using DMSO and O<sub>2</sub> as oxidants
作者:Mingteng Xiong、Zhan Gao、Xiao Liang、Pengfei Cai、Heping Zhu、Yuanjiang Pan
DOI:10.1039/c8cc05320k
日期:——
A novel I2-catalyzed cross-dehydrogenative aromatization of cyclohexanones and anilines to synthesize N,N′-diaryl-o-phenylenediamines has been unprecedentedly developed with dimethyl sulfoxide and oxygen employed as mild terminal oxidants. To prove the rationality of the two separate dehydration steps of the proposed mechanism, a resulting I2-catalyzed cross-dehydrogenative aromatization of cyclohexenones
[EN] ORGANIC REACTIONS CARRIED OUT IN AQUEOUS SOLUTION IN THE PRESENCE OF A HYDROXYALKYL(ALKYL)CELLULOSE OR AN ALKYLCELLULOSE<br/>[FR] RÉACTIONS ORGANIQUES RÉALISÉES DANS UNE SOLUTION AQUEUSE EN PRÉSENCE D'UNE HYDROXYALKYL(ALKYL)CELLULOSE OU D'UNE ALKYLCELLULOSE
申请人:ABBVIE DEUTSCHLAND
公开号:WO2017129796A1
公开(公告)日:2017-08-03
The present invention relates to a method of carrying out an organic reaction in aqueous solution in the presence of a hydroxyalkyl(alkyl)cellulose or an alkylcellulose.
本发明涉及在水溶液中在羟基烷基(烷基)纤维素或烷基纤维素存在下进行有机反应的方法。
Aminations of Aryl Bromides in Water at Room Temperature
作者:Bruce H. Lipshutz、David W. Chung、Brian Rich
DOI:10.1002/adsc.200900323
日期:2009.8
Unsymmetrical di- and triarylamines can be formed under green chemistry conditions, taking advantage of micellar catalysis leading to palladium-catalyzed aminations at ambient temperatures in water as the only medium.
Cu(I)–N-heterocyclic carbene-catalyzed base free C–N bond formation of arylboronic acids with amines and azoles
作者:Maoyuan Zhang、Zengbing Xu、Dabin Shi
DOI:10.1016/j.tet.2020.131861
日期:2021.1
A new N-heterocyclic carbene (NHC) precursor of imidazolium chloride and its corresponding Cu(I)–NHC complex 1 was synthesized. The complex 1 was found to be a highly effective catalyst for Chan-Evans-Lam coupling of arylboronic acid with amines and azoles (including imidazole, pyrazole and triazole), without addition of base at roomtemperature. Various substituents on three substrates can be tolerated
The cross-coupling of aryl tosylates with amines and anilines was accomplished by using a Ni-based catalyst system from the combination of Ni(II)−(σ-aryl) complexes/N-heterocyclic carbenes (NHCs). The feature, scope, and limitation of this reaction are disclosed.