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

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 H NMR. The isolated diazonium salt is stable and active even after 192 h at room temperature.

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http://dx.doi.org/10.1039/c9cc01114eDOI Listing

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