A “one-pot” synthesis of adipic acid from cyclohexene under mild conditions with new bifunctional Ti-AlSBA mesostructured catalysts

Vapour phase hydrogenolysis of glycerol to propanediols over Cu/SBA‐15 catalysts

“…(A). The pure SBA‐15 sample exhibits a type IV isotherm with sharp uptake of nitrogen in the p/p 0 range 0.6–0.8 indicating the presence of mesoporous hexagonal structure with ordered porosity . Interestingly, the SBA‐15 supported copper catalysts show similar isotherms to that of SBA‐15.…”

Packed‐Bed Microreactor for Continuous‐Flow Adipic Acid Synthesis from Cyclohexene and Hydrogen Peroxide

“…In the reported batch procedures, the direct oxidation of cyclohexene to adipic acid requires several hours to obtain full conversion [9][10][11][12][13][14]. In flow, the reaction could be accelerated significantly by utilizing harsh reaction conditions, i.e., a reaction temperature of 100°C and the use of a highly concentrated hydrogen peroxide solution (50 %) resulted in the formation of adipic acid (50 wt % isolated yield) within 20 min.…”

“…Hydrogen peroxide has a high active oxygen content (47 % active oxygen) and produces water as the sole byproduct [7]. Inspired by this landmark paper, several other catalysts have been developed with varying success to enable efficient adipic acid synthesis starting from cyclohexene [9][10][11][12][13][14]. One of the first reports was provided by Noyori and co-workers [8].…”

Liquid Phase Oxidation of Cyclohexene Over Selenite Doped MCM-41

“…For example, Cr-MCM-41, Cr-MCM-48 [15], W-SBA-15 [16], Ti-AlSBA [17], TiO 2 -SiO 2 [18] and RuO 2 /TiO 2 [19] have been employed as catalysts for the allylic oxidation or epoxidation of CHE with tert-butylhydroperoxide or H 2 O 2 . The major products of the epoxidation of CHE are cyclohexene oxide (epoxide) and 1,2-cyclohexanediol (CHDL) [18][19][20].…”