2

5-Dicyanofuran (DCF) is an important biomass-derived platform compound primarily used to prepare bio-based adiponitrile

which is the key precursor for the synthesis of nylon 66 and 1

6-hexanediisocyanate (HDI). In this study

one-pot

green and safe synthesis of DCF from 2

5-diformylfuran (DFF) and hydroxylamine ionic liquid salts was proposed. Eco-friendly hydroxylamine ionic liquid salts were used as the nitrogen source. Ionic liquid exhibited three-fold function of cosolvent

catalysis and phase separation. The conversion of DFF and yield of DCF reached 100% under the following optimum reaction conditions: temperature of 120 ℃ for 70 min

volume ratio of paraxylene: [HSO

3

-b-Py

]

·HSO

4

of 2:1

and molar ratio of DFF:(NH

2

OH)

2

·[HSO

3

-b-Py

]

·HSO

4

of 1:1.5. The reaction mechanism for the synthesis of DCF was proposed

and the kinetic model was established. The reaction order with respect to DFF and intermediate product 2

5-diformylfuran dioxime (DFFD) was 1.06 and 0.16

and the reaction activation energy was 64.07 kJ·mol

-1

and 59.37 kJ·mol

-1

respectively. After the reaction

the ionic liquid was easy to separate

recover and recycle.