Metal-free, 2-MeTHF mediated C (sp)–H functionalization of alkynes with anilines to access diaryl 1, 2-diketones bearing lower E-factors

S Bhukta, R Chatterjee, R Dandela - Green Chemistry, 2023 - pubs.rsc.org
A metal-free and efficient oxidative C (sp)–H functionalization of alkynes has been
developed for the synthesis of 1, 2-diketones. A composite of tert-butyl nitrite and ascorbic …

TMSOTf-catalyzed synthesis of trisubstituted imidazoles using hexamethyldisilazane as a nitrogen source under neat and microwave irradiation conditions

KH Asressu, CK Chan, CC Wang - RSC advances, 2021 - pubs.rsc.org
In the process of drug discovery and development, an efficient and expedient synthetic
method for imidazole-based small molecules from commercially available and cheap …

Thiyl radical catalyzed oxidation of diarylalkynes to α-diketones by molecular oxygen under visible-light irradiation

X Zhu, P Li, Q Shi, L Wang - Green Chemistry, 2016 - pubs.rsc.org
A facile synthesis of diaryl 1, 2-diketones from diarylalkynes under visible-light irradiation
was developed. The reaction proceeded smoothly through a thiyl radical catalyzed oxidation …

Transition metal-free, photocatalytic arylation and dioxygenation for vicinal diketone synthesis using alkynes and arene diazonium salts

B Zhao, X Yin, H Li, K Cheng, JP Wan - Organic Chemistry Frontiers, 2023 - pubs.rsc.org
A metal-free dioxygenative reaction of aryl diazonium salts with aryl alkynes for vicinal
diketone synthesis is developed. Aerobic oxygenation and organic dye-based …

Transition‐Metal Catalyzed Coupling Reactions for the Synthesis of (Het) aryl Ketones: An Approach from their Synthesis to Biological Perspectives

I Karakaya, K Rizwan, S Munir - ChemistrySelect, 2023 - Wiley Online Library
Synthetic protocols capable of incorporating acyl based functional moieties have been
proved fruitful to develop variety of carbonyl containing organic molecules. Substituted …

Transition-metal-free oxidative reaction of hydrazines and potassium metabisulfite for preparation of sulfonohydrazides

Y Wang, B Du, W Sha, H Mei, J Han… - Organic Chemistry …, 2017 - pubs.rsc.org
A transition-metal-free oxidative coupling reaction for the synthesis of sulfonohydrazides
from two types of hydrazines and potassium metabisulfite under air has been developed …

Synthesis of Imidazolium‐Based Ionic Liquid on Modified Magnetic Nanoparticles for Application in One‐Pot Synthesis of Trisubstituted Imidazoles

R Khalifeh, V Naseri, M Rajabzadeh - ChemistrySelect, 2020 - Wiley Online Library
The core‐shell of Fe3O4@ SiO2 modified by epichlorohydrin and 1‐methyl‐imidazole
(Fe3O4@ SiO2‐EPIM), a new green recyclable nanocatalyst, was designed and prepared …

Urea–zinc chloride eutectic mixture-mediated one-pot synthesis of imidazoles: efficient and ecofriendly access to trifenagrel

NL Higuera, D Peña-Solórzano, C Ochoa-Puentes - Synlett, 2019 - thieme-connect.com
The low-melting mixture urea–ZnCl 2 was evaluated as a novel reaction medium for the
synthesis of imidazoles. The reaction between a dicarbonyl compound, ammonium acetate …

Transition Metal‐Catalyzed Synthesis of 1, 2‐Diketones: An Overview

A Kumar, V Sridharan - Asian Journal of Organic Chemistry, 2021 - Wiley Online Library
Abstract The 1, 2‐diketone structural motif is present in various natural products and
compounds of biological significance. In addition, these compounds are frequently used as …

Copper‐Catalyzed Selective Aerobic Oxidative Cascade Reaction of Hydrazines, DABSO, and Amines for the Direct Synthesis of Sulfonamides

B Du, Y Wang, W Sha, P Qian, H Mei… - Asian Journal of …, 2017 - Wiley Online Library
A Cu‐catalyzed highly selective aerobic oxidative coupling reaction of hydrazines and
amines has been achieved with the use of 1, 4‐diazabicyclo [2.2. 2] octane bis (sulfur …