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Room temperature diazotization and coupling reaction using a DES–ethanol system: a green approach towards the synthesis of monoazo pigments

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Abstract

An environmentally benign, one-pot diazotization and coupling reaction using ChCl:tartaric acid DES at room temperature is described. The bulky tartrate ion renders stability to the diazonium salt at room temperature, also evidenced by 1H NMR. The isolated diazonium salt is stable and active even after 192 h at room temperature.

Graphical abstract: Room temperature diazotization and coupling reaction using a DES–ethanol system: a green approach towards the synthesis of monoazo pigments

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Publication details

The article was received on 07 Feb 2019, accepted on 25 Apr 2019 and first published on 25 Apr 2019


Article type: Communication
DOI: 10.1039/C9CC01114E
Chem. Commun., 2019, Advance Article

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    Room temperature diazotization and coupling reaction using a DES–ethanol system: a green approach towards the synthesis of monoazo pigments

    S. S. Kamble and G. S. Shankarling, Chem. Commun., 2019, Advance Article , DOI: 10.1039/C9CC01114E

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