Microwave-Assisted Solventless Reaction of Iridium-Catalyzed Alkylation of Amines with Alcohols in the Absence of Base
作者:Weixing Zhang、Xiaochun Dong、Weili Zhao
DOI:10.1021/ol202281h
日期:2011.10.7
Microwave-assisted iridium catalyzed alkylation of amines with alcohols was undertaken under solvent-free and base-free conditions. Such alkylation reactions are green, atom-economic, and effective for mono-, di-, and triaklyation of amines. Good isolated yields were obtained for mono- and dialkylated amines using stoichiometric amounts of amines and alcohols, in the presence of 1 mol % [Cp*IrCl2]2. Reasonable
One-Pot Synthesis of Symmetrical Tertiary and Secondary Amines from Carbonyl Compounds, Ammonium Carbonate and Carbon Monoxide as a Reductant
作者:Karim Muratov、Oleg I. Afanasyev、Ekaterina Kuchuk、Sofiya Runikhina、Denis Chusov
DOI:10.1002/ejoc.201901175
日期:2019.10.17
Rh‐catalyzed one‐step synthesis of tertiary and secondary amines from aldehydes and ketones, ammonium carbonate serving as nitrogen source, and carbon monoxide as a reducing agent has been developed. Aliphatic and aromatic aldehydes lead to the corresponding tertiary symmetrical amines in 69–83 % yields. Aromatic and aliphatic ketones lead to the corresponding secondary symmetrical amines which were
Dichotomy of Atom-Economical Hydrogen-Free Reductive Amidation vs Exhaustive Reductive Amination
作者:Pavel N. Kolesnikov、Dmitry L. Usanov、Karim M. Muratov、Denis Chusov
DOI:10.1021/acs.orglett.7b02821
日期:2017.10.20
Rh-catalyzed one-step reductive amidation of aldehydes has been developed. The protocol does not require an external hydrogen source and employs carbon monoxide as a deoxygenative agent. The direction of the reaction can be altered simply by changing the solvent: reaction in THF leads to amides, whereas methanol favors formation of tertiaryamines.