Results 61 to 70 of about 26,559,672 (198)

Sequential Hydrocarbon Functionalization:  Allylic C−H Oxidation/Vinylic C−H Arylation

, 2016
A Pd(II)/sulfoxide-catalyzed sequential allylic C−H oxidation/vinylic C−H arylation of α-olefins to furnish E-arylated allylic esters in high regio- and E:Z selectivities (>20:1) is reported.
M. Christina White (1315503), Jared H. Delcamp (1431343)   +1 more
core   +2 more sources

A Simple Aliphatic Diamine Auxiliary for Palladium-Catalyzed Arylation of Unactivated beta-C(sp(3))-H Bonds

, 2018
Palladium-catalyzed beta-C(sp(3))-H arylation of aliphatic acid derivatives was achieved by means of 2-dimethylaminoethylamine auxiliary as a directing group.
Lou, Jiang, He, Yuan, Wang, Quannan, Yu, Zhengkun   +3 more
core   +1 more source

Synthesis of Elaborate Benzofuran-2-Carboxamide Derivatives through a Combination of 8-Aminoquinoline Directed C–H Arylation and Transamidation Chemistry

Molecules, 2020
Herein, we present a short and highly modular synthetic route that involves 8-aminoquinoline directed C−H arylation and transamidation chemistry, and which enables access to a wide range of elaborate benzofuran-2-carboxamides.
Michael Oschmann, Linus Johansson Holm, Monireh Pourghasemi-Lati, Oscar Verho   +3 more
doaj   +1 more source

Pyridylidene ligand facilitates gold-catalyzed oxidative C–H arylation of heterocycles

Beilstein Journal of Organic Chemistry, 2015
Triaryl-2-pyridylidene effectively facilitates the gold-catalyzed oxidative C–H arylation of heteroarenes with arylsilanes as a unique electron-donating ligand on gold.
Kazuhiro Hata, Hideto Ito, Yasutomo Segawa, Kenichiro Itami   +3 more
doaj   +1 more source

Introduction to Spatial Anion Control for Direct C–H Arylation

, 2022
C–H activation of functionally rich molecules without the need for directing groups promises shorter organic syntheses and late-stage diversification of molecules for drug discovery.
Coric, Ilija; https://orcid.org/, Dhankhar, Jyoti; https://orcid.org/   +1 more
core   +1 more source

Phosphine-Free Palladium-Catalyzed Direct C-3 Arylation of 2-Phenylimidazo[1,2-a]pyridine Using Silver(I) Carboxylate

Journal of Chemistry, 2013
Phosphine-free palladium-catalyzed direct arylation of 2-phenyl-imidazo[1,2-a]pyridine has been developed with the concept of using silver(I) carboxylate.
Sridevi Kona, Rama Suresh Ravi, Manab Chakravarty, Venkata N. R. Chava   +3 more
doaj   +1 more source

Remote-carbonyl-directed sequential Heck/isomerization/C(sp2)–H arylation of alkenes for modular synthesis of stereodefined tetrasubstituted olefins

Nature Communications
Modular and regio-/stereoselective syntheses of all-carbon tetrasubstituted olefins from simple alkene materials remain a challenging project. Here, we demonstrate that a remote-carbonyl-directed palladium-catalyzed Heck/isomerization/C(sp2)–H arylation ...
Runze Luan, Ping Lin, Kun Li, Yu Du, Weiping Su   +4 more
doaj   +1 more source

Enantioselective benzylic C–H arylation via photoredox and nickel dual catalysis

Nature Communications, 2019
Chiral 1,1-diaryl alkanes are important targets in pharmaceutical industry. Here, the authors report report a redox-neutral enantioselective benzylic C−H bond arylation via photoredox/nickel dual catalysis accessing chiral 1,1-diarylalkane compounds ...
Xiaokai Cheng, Huangzhe Lu, Zhan Lu
doaj   +1 more source

Design and synthesis of palladium (II) OCO pincer type complexes and their catalytic role towards the α-arylation of ketones

Journal of Saudi Chemical Society, 2019
Twelve OCO bisacetamide ligands 4aa-4dc were synthesized after condensation of isophenylenediamines 1a-1d and anhydride/acyl chlorides. The corresponding Pd(II)–OCO–H(5aa-5ac), Pd(II)–OCO–Me(5ba-5bc), Pd(II)–OCO–OMe(5ca-5 cc), Pd(II)–OCO–NO2(5da-5dc ...
Wang Kai, Hua Qian, Dabin Liu, Zhiwen Ye
doaj   +1 more source

Efficient Rh(I)-Catalyzed Direct Arylation and Alkenylation of Arene C-H Bonds via Decarbonylation of Benzoic and Cinnamic Anhydrides

, 2009
Efficient rhodium(I)-catalyzed regioselective direct arylation and alkenylation of aromatic C-H bonds has been realized with aromatic carboxylic and cinnamic anhydrides as the coupling partners via decarbonylation and C-H activation under phosphine-free ...
Ye, Wenjing, Jin, Weiwei, Xiao, Wen-Jing, Yu, Zhengkun, He, Wei, 余正坤   +5 more
core   +1 more source