A Phosphine-Oxide Cobalt (II) Complex and Its Catalytic Activity Studies toward Alcohol Dehydrogenation Triggered Direct Synthesis of Imines and Quinolines

M Khatua, B Goswami, A Devi, Kamal, S Hans… - Inorganic …, 2024 - ACS Publications
Herein, a new pincer-like amino phosphine donor ligand, H 2 L 1, and its phosphine-oxide
analog, H 2 L 2, were synthesized. Subsequently, cobalt (II) complexes 1 and 2 were …

Cobalt complexes as an emerging class of catalysts for homogeneous hydrogenations

W Liu, B Sahoo, K Junge, M Beller - Accounts of Chemical …, 2018 - ACS Publications
Conspectus Catalytic hydrogenation using molecular hydrogen represents a green and
practical approach for reductions of all kinds of organic chemicals. Traditionally, in the …

Synthesis of imines from the coupling reaction of alcohols and amines catalyzed by phosphine-free cobalt (ii) complexes

J Mahato, PS Bera, TK Saha - Organic & Biomolecular Chemistry, 2024 - pubs.rsc.org
Phosphine-free, air stable cobalt (II) based complexes (1a and 1b) consisting of ligands
L1H2 and L2H2 (L1H2= N, N′-((1, 2-phenylenebis (azaneylylidene)) bis …

Co‐Catalyzed Metal‐Ligand Cooperative Approach for N‐alkylation of Amines and Synthesis of Quinolines via Dehydrogenative Alcohol Functionalization

S Mondal, S Pal, S Khanra… - European Journal of …, 2023 - Wiley Online Library
Herein we report a cobalt‐catalyzed sustainable approach for C− N cross‐coupling reaction
between amines and alcohols. Using a well‐defined Co‐catalyst 1 a bearing 2 …

In situ generated cobalt catalyst for the dehydrogenative coupling of alcohols and amines into imines

F Bottaro, R Madsen - ChemCatChem, 2019 - Wiley Online Library
An in situ formed cobalt catalyst is developed from cobalt (II) bromide, bis [2‐
(diisopropylphosphino)‐4‐methylphenyl] amine and zinc metal. The catalyst mediates the …

Alkyl Phosphine Free, Metal‐Ligand Cooperative Complex Catalyzed Alcohol Dehydrogenative Coupling Reactions

BC Roy, K Ganguli, SA Samim… - Asian Journal of Organic …, 2021 - Wiley Online Library
In last two decades alcohol has drawn a special attention as a building blocks due to its
abundance, low cost and less toxic nature which can be derived from various sustainable …

General and Phosphine‐Free Cobalt‐Catalyzed Hydrogenation of Esters to Alcohols

Z Shao, R Zhong, R Ferraccioli, Y Li… - Chinese Journal of …, 2019 - Wiley Online Library
Summary of main observation and conclusion Catalytic hydrogenation of esters is essential
for the sustainable production of alcohols in organic synthesis and chemical industry …

Amine Functionalized Pincer-like Azo-aromatic Complexes of Cobalt and Their Catalytic Activities in the Synthesis of Quinoline via Acceptorless Dehydrogenation of …

B Goswami, M Khatua, R Chatterjee, Kamal… - …, 2023 - ACS Publications
Herein we disclose a series of phosphine-free cobalt (II)-based catalytic systems bearing a
redox non-innocent amine functionalized azo-aromatic pincer-like ligand for the synthesis of …

Synthetic Applications Based on Dehydrogenative Alcohol Activation Catalyzed by Mn-, Fe and Co-Complexes

R Ferraccioli - Current Organic Chemistry, 2018 - ingentaconnect.com
Background and Objectives: An environmentally benign method for the activation of an
alcohol is based on its temporary conversion to a more reactive carbonyl compound by …

Designed pincer ligand supported Co (II)-based catalysts for dehydrogenative activation of alcohols: Studies on N-alkylation of amines, α-alkylation of ketones and …

A Singh, A Maji, M Joshi, AR Choudhury… - Dalton Transactions, 2021 - pubs.rsc.org
Base-metal catalysts Co1, Co2 and Co3 were synthesized from designed pincer ligands L1,
L2 and L3 having NNN donor atoms respectively. Co1, Co2 and Co3 were characterized by …