Issue 42, 2019

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

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

Supplementary files

Article information

Article type
Communication
Submitted
07 Feb 2019
Accepted
25 Apr 2019
First published
25 Apr 2019

Chem. Commun., 2019,55, 5970-5973

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, 55, 5970 DOI: 10.1039/C9CC01114E

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