Issue 18, 2018
From the journal:

Organic Chemistry Frontiers

Rh-Catalyzed regioselective C–H activation and C–C bond formation: synthesis and photophysical studies of indazolo[2,3-a]quinolines†

Sundaravel Vivek Kumar, ORCID logo a   Sundaram Ellairaja,b   Vanaparthi Satheesh,a   Vairathevar Sivasamy Vasantha*b  and  Tharmalingam Punniyamurthy ORCID logo *a  

* Corresponding authors

a Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
E-mail: tpunni@iitg.ernet.in

b Department of Chemistry, Madurai Kamaraj University, Madurai-625 021, India
E-mail: vasantham999@yahoo.co.in

Abstract

Rh(III)-Catalyzed regioselective C–H functionalization of 2-aryl-2H-indazoles with alkynes is reported to furnish indazoloquinolines utilizing Cu(OAc)2·H2O as an oxidant, which facilitates the reductive elimination step. Kinetic isotope studies suggest that C–H activation is presumably the product determining step. The products display a strong blue emission with high quantum yields.

Graphical abstract: Rh-Catalyzed regioselective C–H activation and C–C bond formation: synthesis and photophysical studies of indazolo[2,3-a]quinolines

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Article information

DOI
https://doi.org/10.1039/C8QO00557E
Article type
Research Article
Submitted
06 Jun 2018
Accepted
11 Jul 2018
First published
11 Jul 2018

Org. Chem. Front., 2018,5, 2630-2635

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Rh-Catalyzed regioselective C–H activation and C–C bond formation: synthesis and photophysical studies of indazolo[2,3-a]quinolines

S. Vivek Kumar, S. Ellairaja, V. Satheesh, V. Sivasamy Vasantha and T. Punniyamurthy, Org. Chem. Front., 2018, 5, 2630 DOI: 10.1039/C8QO00557E

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