Cobalt(II) Phthalocyanine-Catalyzed Highly Chemoselective Reductive Amination of Carbonyl Compounds in a Green Solvent
作者:Vishal Kumar、Upendra Sharma、Praveen K. Verma、Neeraj Kumar、Bikram Singh
DOI:10.1002/adsc.201100645
日期:2012.3.16
Cobalt phthalocyanine has been employed for the highlychemoselectivereductiveamination of aldehydes and ketones in ethanol as a greensolvent. A large range of functional groups such as nitro, acid, amide, ester, nitrile, halogen, lactone, methoxy, hydroxy, alkene, N‐benzyl, O‐benzyl and heterocyclic rings were well tolerated under the present reaction conditions.
In the presence of methylene group, selective N-methyl activation of tertiary amines has been accomplished with the aid of visiblelight using organic photocatalyst under air. This protocol explores numerous aliphatic and aromatic substituted tetra-hydroquinoline analogues from various tertiary amines and maleimides. Furthermore, this approach was applied to activate the methyl group of N-methyl carbazole
Hydrogenation of (N,N-disubstituted aminomethyl)nitrobenzenes to (N,N-disubstituted aminomethyl)anilines catalyzed by palladium–nickel bimetallic nanoparticles
作者:Hailin Bao、Dingsheng Wang、Xinyan Wang、Chuanjie Cheng、Yadong Li、Yuefei Hu
DOI:10.1039/c5ra07208e
日期:——
A Pd–Ni bimetallic nanoparticles catalyzed hydrogenation of (N,N-disubstituted aminomethyl)nitrobenzenes to (N,N-disubstituted aminomethyl)anilines was achieved chemoselectively.
Cleavage reactions using basic hydrogen peroxide. A method for deblocking -nitrobenzyl protected bases and phenols
作者:Rohan Balasuriya、Simon J. Chandler、Michael J. Cook、David J. Hardstone
DOI:10.1016/s0040-4039(00)81662-7
日期:1983.1
The hydrolysis of certain nitriles with basichydrogenperoxide is accompanied by an oxidative cleavage reaction giving the lower homologue carboxylic acid. Under the same conditions, p-nitrobenzylated bases and phenols yield the corresponding N-H base or phenol respectively.
Making and Breaking of C−N Bonds: Applications in the Synthesis of Unsymmetric Tertiary Amines and α‐Amino Carbonyl Derivatives
作者:Vishal Jyoti Roy、Vishali Pathania、Sudipta Raha Roy
DOI:10.1002/asia.202200998
日期:2023.1.3
Tetrel-bonding interaction in action: A simple C−N activation method for the synthesis of unsymmetrical tertiary amines, α-amino esters and ketones is reported. Non-covalent interactions play a pivotal role in this catalyst-free and additive-free reaction.
Tetrel-bonding interaction in action:报道了一种用于合成不对称叔胺、α-氨基酯和酮的简单 C−N 活化方法。非共价相互作用在这种无催化剂和无添加剂的反应中起着关键作用。