Pd-catalyzed addition of arylboronic acids to N-tosylarylimines was described by employing easily prepared, air-stable aminophosphine ligands, cheap inorganic base, and common organic solvents, providing diarylmethylamine derivatives through one-pot synthesis in moderate to good yields. The efficiency of this reaction was demonstrated by the compatibility with nitro, trifluoromethyl, fluoro, chloro, and methoxy groups. Moreover, rigorous exclusion of air/moisture is not required in these transformations.
Asymmetric arylation of aldimines catalyzed by heterogeneous chiral rhodium nanoparticles has been developed. The reaction proceeded in aqueousmedia without significant decomposition of the imines by hydrolysis to afford chiral (diarylmethyl)amines in high yields with outstanding enantioselectivities. This catalyst system exhibited the highest turnover number (700) in heterogeneous catalysts reported
In situ generated cationic Pd(II)/bipyridine-catalyzed addition of arylboronic acids to N -sulfonyl-arylaldimines
作者:Zhenyu Yang、Yuxin Ni、Rui Liu、Kaixuan Song、Shaohui Lin、Qinmin Pan
DOI:10.1016/j.tetlet.2017.04.035
日期:2017.5
An in situgenerated cationic Pd(II)/bipyridine-catalyzed nucleophilic addition of arylboronic acids to N-sulfonyl arylaldimines was developed and optimized, and the reaction was proceeded highly efficiently and conveniently in CH3NO2. A series of arylboronic acids and N-sulfonyl arylaldimines were surveyed, and 12 of 13 examples gave 90∼96% yields.
开发并优化了原位生成的阳离子Pd(II)/联吡啶催化的芳基硼酸向N-磺酰基芳基亚胺的亲核加成反应,并在CH 3 NO 2中高效且方便地进行了反应。考察了一系列芳基硼酸和N-磺酰基芳基亚胺,在13个实施例中的12个给出了90〜96%的收率。
A facile access for the C-N bond formation by transition metal-free oxidative coupling of benzylic C-H bonds and amides
作者:Jie Liu、Heng Zhang、Hong Yi、Chao Liu、Aiwen Lei
DOI:10.1007/s11426-015-5381-2
日期:2015.8
as the oxidant, we communicate an efficient oxidative C-N coupling of benzylic C-H bonds with amides to afford a series of amination products in good yields. A wide range of functional groups as well as various sulfonamides and carboxamides are well tolerated. Moreover, this reaction involves both the challenging C-H functionalization and C-N bond formation.
<i>α</i>‐C−H Arylation of <i>N</i>‐Sulfonyl Amines by Dual Palladium Catalysis
作者:Yu‐Cheng Liu、Hang Shi
DOI:10.1002/cctc.202300392
日期:2023.6.9
α-arylated amines from simple linear N-sulfonyl amines and aryl boroxines utilizing dual palladium catalysis involving amine dehydrogenation. Bromobenzene serves as a hydride acceptor, and the ensuing imineintermediate undergoes a novel umpolung arylation. Given the wide availability of primaryamines, this method can be expected to be useful for the synthesis of structurally complex amines with varied