A Ligand/Additive/Base-Free C(sp2)-H Activation and Isocyanide Insertion in PEG-400: Synthesis of Indolizine/Imidazoline-Fused Heterocycles

K. Shiva Kumar; Bandari Rajesham; N. Praveen Kumar; Meesa Siddi Ramulu; Rambabu Dandela

doi:10.1002/slct.201800397

A Ligand/Additive/Base-Free C(sp²)-H Activation and Isocyanide Insertion in PEG-400: Synthesis of Indolizine/Imidazoline-Fused Heterocycles

K. Shiva Kumar, Bandari Rajesham, N. Praveen Kumar, Meesa Siddi Ramulu, Rambabu Dandela

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

A ligand/base/metal oxidant free Pd-catalyzed C(sp²)–H activation, followed by isocyanide insertion to synthesize indolizine/imidazoline fused heterocyclics in PEG-400 as a recyclable solvent. The present transformation is greener and an efficient strategy using oxygen as external oxidant. The spectroscopic properties of selected indolizine/imidazoline fused heterocyclics were studied by UV−visible and fluorescence spectroscopy.

Original language	English
Pages (from-to)	4581-4585
Number of pages	5
Journal	ChemistrySelect
Volume	3
Issue number	17
DOIs	https://doi.org/10.1002/slct.201800397
State	Published - 8 May 2018
Externally published	Yes

Keywords

C−H activation
heterocycles
isocyanide insertion
PEG-400
spectroscopic properties

ASJC Scopus subject areas

General Chemistry

Access to Document

10.1002/slct.201800397

Cite this

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title = "A Ligand/Additive/Base-Free C(sp2)-H Activation and Isocyanide Insertion in PEG-400: Synthesis of Indolizine/Imidazoline-Fused Heterocycles",

abstract = "A ligand/base/metal oxidant free Pd-catalyzed C(sp2)–H activation, followed by isocyanide insertion to synthesize indolizine/imidazoline fused heterocyclics in PEG-400 as a recyclable solvent. The present transformation is greener and an efficient strategy using oxygen as external oxidant. The spectroscopic properties of selected indolizine/imidazoline fused heterocyclics were studied by UV−visible and fluorescence spectroscopy.",

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AU - Rajesham, Bandari

AU - Kumar, N. Praveen

AU - Ramulu, Meesa Siddi

AU - Dandela, Rambabu

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KW - C−H activation

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KW - PEG-400

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