α-Alkylation of Nitriles with Primary Alcohols by a Well-Defined Molecular Cobalt Catalyst
作者:Keshav Paudel、Shi Xu、Keying Ding
DOI:10.1021/acs.joc.0c01822
日期:2020.12.4
The α-alkylation of nitriles with primary alcohols to selectively synthesize nitriles by a well-defined molecular homogeneous cobalt catalyst is presented. Thirty-two examples with up to 95% yield are reported. Remarkably, this transformation is environmentally friendly and atom economical with water as the only byproduct.
Cobalt-Catalyzed Alkylation of Nitriles with Alcohols
作者:Arpita Singh、Michael Findlater
DOI:10.1021/acs.organomet.1c00690
日期:2022.11.28
Herein, we report an operationally convenient, cobalt-catalyzed alkylation of aryl nitriles employing primary and secondary alcohols (>30 examples, up to 86% yield). The use of readily available cobalt precursors and the widely employed BIAN (BIAN = bis(arylimino)acenaphthene) ligand affords an efficient catalytic reaction that is environmentally benign, leading to the formation of water as the only
Heteroditopic NHC Ligand Supported Manganese(I) Complexes: Synthesis, Characterization, and Activity as Non‐bifunctional Phosphine‐Free Catalyst for the α‐Alkylation of Nitriles
作者:Siva Nagendra Reddy Donthireddy、Arnab Rit
DOI:10.1002/chem.202302504
日期:2024.1.2
Borrowing hydrogen: The catalytic efficiency of phosphine-free non-bifunctional MnI−NHC complexes of chelating heteroditopicligands featuring ImNHC connected to a 1,2,3-triazole-N or tzNHC donors through a methylene spacer have been explored for coupling of diverse nitriles with alcohols by borrowing hydrogen protocol. The catalyst Mn1 containing ImNHC connected to triazole-N donor displayed higher
Amine-functionalized bifunctional Co<sup>III</sup>-NHC complexes: highly effective phosphine-free catalysts for the α-alkylation of nitriles
作者:Biswaranjan Boity、Misba Sidiqque、Arnab Rit
DOI:10.1039/d3cc05454c
日期:——
Robust bifunctional CoIII –complexes featuring amine-functionalized NHC ligands have been developed as highly effective catalysts for the nitrile α-alkylation with diverse alcohols, spanning from aliphatic to aromatic including the secondary ones.