One-pot production of diethyl maleate via catalytic conversion of raw lignocellulosic biomass

Selective conversion of raw biomass to diethyl maleate was conducted by polyoxometalate ionic liquid [BSmim]CuPW 12 O 40 , where up to 329.6 mg g −1 DEM yield, 70.3 % selectivity, and 20.8% carbon yield were obtained at 170 °C for 4 h and 1 MPa O 2 .