Metal-free oxidative C–C coupling of arylamines using a quinone-based organic oxidant

S Maddala, S Mallick… - The Journal of Organic …, 2017 - ACS Publications
A variety of arylamines are shown to undergo oxidative C–C bond formation using quinone-
based chloranil/H+ reagent as the recyclable organic (metal-free) oxidant system to afford …

DMSO–DCE Triggered Chemodivergent C-Methylenation of Electron-Rich Arenes: An Easy Access to Diarylmethanes

PG Dalai, S Swain, N Panda - The Journal of Organic Chemistry, 2024 - ACS Publications
The chemodivergent property of dimethyl sulfoxide (DMSO) along with 1, 2-dichloroethane
(DCE) was exploited for the incorporation of a methylene group to form diarylmethanes …

Iron‐Catalyzed Oxidative C− C Cross‐Coupling Reaction of Tertiary Anilines with Hydroxyarenes by Using Air as Sole Oxidant

A Purtsas, O Kataeva, HJ Knölker - Chemistry–A European …, 2020 - Wiley Online Library
A mild procedure for the oxidative C− C cross‐coupling of tertiary anilines with phenols is
described which provides the products generally in high yields and with excellent selectivity …

Direct oxidative cyanation of tertiary amines promoted by in situ generated hypervalent iodine (III)-CN intermediate

H Shen, X Zhang, Q Liu, J Pan, W Hu, Y Xiong, X Zhu - Tetrahedron Letters, 2015 - Elsevier
An environmentally benign and metal-free cyanation method of tertiary amines oxidated by
hypervalent iodine (III) intermediate generated in situ from PIFA (or DIB) and TMSCN has …

Stable Spiro‐Fused Diarylaminyl Radicals: A New Type of a Neutral Mixed‐Valence System

VV Sentyurin, OA Levitskiy… - … A European Journal, 2023 - Wiley Online Library
A new type of neutral mixed‐valence system was synthesized using a facile one‐pot
procedure. The spiro‐conjugated framework is additionally “fastened” with a biphenyl …

Iron-catalysed sequential reaction towards α-aminonitriles from secondary amines, primary alcohols and trimethylsilyl cyanide

H Shen, L Hu, Q Liu, MI Hussain, J Pan… - Chemical …, 2016 - pubs.rsc.org
Iron-catalysed sequential reaction towards α-aminonitriles from secondary amines, primary
alcohols and trimethylsilyl cyanide - Chemical Communications (RSC Publishing) DOI:10.1039/C5CC10346K …

Aerobic oxidative homocoupling reaction of anilides using heterogeneous metal catalysts

S Fujimoto, K Matsumoto, T Iwata, M Shindo - Tetrahedron Letters, 2017 - Elsevier
We have developed a heterogeneous catalytic oxidative homocoupling reaction of
dimethoxyanilides under an oxygen atmosphere. The resulting homo-dimers are useful for …

Fe2O3-catalyzed Pummerer rearrangement of acyl chlorides and sulfoxides: Facile synthesis of alkylthiomethyl ester

H Xing, L Chen, Y Jia, Z Jiang, Z Yang - Tetrahedron Letters, 2017 - Elsevier
A simple, effective approach for the Pummerer rearrangement of acyl chlorides with
sulfoxides by using a low-cost and more abundant Fe catalyst has been described. The …

Catalytic and Aerobic Oxidative Biaryl Coupling of Anilines Using a Recyclable Heterogeneous Catalyst for Synthesis of Benzidines and Bicarbazoles

K Matsumoto, Y Toubaru, S Tachikawa… - The Journal of …, 2020 - ACS Publications
In this study, a heterogeneous rhodium-catalyzed oxidative homocoupling reaction of
anilines utilizing molecular oxygen as the sole oxidant is reported. Employing a …

Synthesis of 1, 2-disubstituted benzimidazoles through DDQ-oxidized intramolecular dehydrogenative coupling of N, N′-dialkyl o-phenylenediamines

Y Ma, R Xiong, Y Feng, X Zhang, Y Xiong - Tetrahedron, 2020 - Elsevier
Abstract The synthetic methodology of 1, 2-disubstituted benzimidazoles has been
developed, which starts from N, N′-dialkyl o-phenylenediamines via intramolecular …