Results 71 to 80 of about 92,195 (127)

A deep eutectic solvent for palladium-catalyzed C3-direct arylation of imidazo[1,2-a]pyridine, pyrazolo[4,3-b]pyridine and 2H-indazoles

This study investigates the efficiency of direct arylation methods through C–H activation at the C-3 position of pyrazolo[4,3-b]pyridines (4-azaindazole), imidazo[1,2-a]pyridines, and 2H-indazoles which are recognized for their significant bioactive ...
Yassine El Baraka, Nabil El Brahmi, Abdelali Chihab, Ghanem Hamdoun, Saïd El Kazzouli   +4 more
core   +1 more source

Visible-Light-Promoted Direct C3‑H Cyanomethylation of 2H‑Indazoles

The efficient visible-light-promoted cyanomethylation of 2H-indazoles in the presence of Ir­(ppy)3 as the photocatalyst and bromoacetonitrile as the cyanomethyl radical source was achieved under mild conditions, providing a series of C3-cyanomethylated ...
Xia Mi (1695643), Jingyu Zhang (256203), Beibei Cui (3390248), Jinqing Song (12292320)   +3 more
core   +1 more source

A one-pot-three-step route to triazolotriazepinoindazolones from oxazolino-2H-indazoles. [PDF]

Org Lett, 2012
Conrad WE, Rodriguez KX, Nguyen HH, Fettinger JC, Haddadin MJ, Kurth MJ.   +5 more
europepmc   +1 more source

Synthesis of 2H-indazoles by the [3 + 2] dipolar cycloaddition of sydnones with arynes. [PDF]

J Org Chem, 2011
Fang Y, Wu C, Larock RC, Shi F.
europepmc   +1 more source

Regioselective C3-Formylation of 2H-Indazoles Using Selectfluor under Microwave-Assisted Conditions

SynOpen
Manivel Pitchai, Mahammed Kaspady, Gopikumar Indasi, Rajesh Krishnan, Gururaju Sannakki Maheswarappa, Muthalagu Vetrichelvan, Arvind Mathur, Anuradha Gupta   +7 more
doaj   +1 more source

Pd-catalyzed, oxidant-promoted, chelation-assisted, regioselective direct <i>ortho</i>-nitration of 1-aryl-1<i>H</i>-indazoles <i>via</i> C-H bond activation: direct access to novel indazole-based antiproliferative agents. [PDF]

RSC Adv
Sen J, Shivani, Kumar P, Datusalia AK, Chaudhary S.   +4 more
europepmc   +1 more source

A facile route to 1H- and 2H-indazoles from readily accessible acyl hydrazides by exploiting a novel aryne-based molecular rearrangement

, 2018
Herein we report the transformation of readily synthesised acyl hydrazides into 2-hydrazobenzophenones via a novel molecular rearrangement pathway using aryne chemistry. The developed reaction protocol is performed under relatively mild conditions and is
Shamsabadi, A, Chudasama, V
core  

Synthesis of 2H-indazoles by the [3 + 2] cycloaddition of arynes and sydnones. [PDF]

Org Lett, 2010
Wu C, Fang Y, Larock RC, Shi F.
europepmc   +1 more source

Development of a Screening Workflow for the Halogenation of Nitrogen Heterocycles with Vanadium-Dependent Haloperoxidases. [PDF]

ACS Bio Med Chem Au
Brzezinski CU, Solis SA, Slocumb HS, Bacsa J, Biegasiewicz KF.   +4 more
europepmc   +1 more source

Synthesis, Characterization, and Application of Pd(II)-NNN Pincer Complexes in Direct C-H Arylation of Heteroarenes with Aryl Bromides. [PDF]

ACS Omega
Swami PN, Khichar N, Aarzoo, Roy RK, Rangan K, Kumar A.   +5 more
europepmc   +1 more source