Transition-metal-free coupling reactions

CL Sun, ZJ Shi - Chemical reviews, 2014 - ACS Publications
Transition-metal-catalyzed reactions have been studied since the very beginning of the past
century and represent a great success in organic chemistry, along with the birth and growth …

Synthesis of biaryls using aryne intermediates

JA García-López, MF Greaney - Chemical Society Reviews, 2016 - pubs.rsc.org
The synthesis of biaryls from benzyne intermediates offers an alternative strategy to
conventional metal-catalyzed cross-coupling approaches. The concept is as old as benzyne …

Catalytic Au (I)/Au (III) arylation with the hemilabile MeDalphos ligand: unusual selectivity for electron-rich iodoarenes and efficient application to indoles

J Rodriguez, A Zeineddine, EDS Carrizo, K Miqueu… - Chemical …, 2019 - pubs.rsc.org
The ability of the hemilabile (P, N) MeDalphos ligand to trigger oxidative addition of
iodoarenes to gold has been thoroughly studied. Competition experiments and Hammett …

Mild and efficient C2‐alkenylation of indoles with alkynes catalyzed by a cobalt complex

Z Ding, N Yoshikai - Angewandte Chemie, 2012 - infona.pl
Die direkte Alkenylierung der C2‐Position von Indolen, die eine leicht zu entfernende N‐
Pyrimidylgruppe tragen, mit Alkinen gelang mithilfe eines Cobalt‐Katalysators mit …

Arylation of hydrocarbons enabled by organosilicon reagents and weakly coordinating anions

B Shao, AL Bagdasarian, S Popov, HM Nelson - Science, 2017 - science.org
Over the past 80 years, phenyl cation intermediates have been implicated in a variety of C–
H arylation reactions. Although these examples have inspired several theoretical and …

Room-Temperature Direct β-Arylation of Thiophenes and Benzo[b]thiophenes and Kinetic Evidence for a Heck-type Pathway

C Colletto, S Islam, F Julia-Hernandez… - Journal of the American …, 2016 - ACS Publications
The first example of a regioselective β-arylation of benzo [b] thiophenes and thiophenes at
room temperature with aryl iodides as coupling partners is reported. This methodology …

Direct Arylation of Imidazo[1,2-a]pyridine at C-3 with Aryl Iodides, Bromides, and Triflates via Copper(I)-Catalyzed C–H Bond Functionalization

H Cao, H Zhan, Y Lin, X Lin, Z Du, H Jiang - Organic letters, 2012 - ACS Publications
A convenient method for the copper (I)-catalyzed arylation of substituted imidazo [1, 2-a]
pyridine has been developed. This method is applicable to a variety of aryl electrophiles …

Recent advances in transition-metal-free direct C–C and C–heteroatom bond forming reactions

VP Mehta, B Punji - RSC advances, 2013 - pubs.rsc.org
The efficient generation of biaryl compounds and heterocycles via the advent of the
transition-metal-free coupling reaction constitutes an important development in the last few …

Evidence for the interaction between t BuOK and 1, 10-phenanthroline to form the 1, 10-phenanthroline radical anion: a key step for the activation of aryl bromides by …

H Yi, A Jutand, A Lei - Chemical Communications, 2015 - pubs.rsc.org
Electron paramagnetic resonance and electrochemistry are used to evidence the interaction
between 1, 10-phenanthroline (Phen) and KOtBu to form the 1, 10-phenanthroline radical …

Alkane C–H insertion by aryne intermediates with a silver catalyst

SY Yun, KP Wang, NK Lee… - Journal of the American …, 2013 - ACS Publications
Arynes generated directly from alkyne building blocks in the presence of silver catalysts
effectively activate primary, secondary, and tertiary alkane C–H bonds. This C–H insertion …