Vanadium-doped phosphomolybdic acids as catalysts for geraniol oxidation with hydrogen peroxide

Abstract

The vanadium-doped phosphomolybdic acid (H4PMo11VO40) was the most active and selective heteropoly catalyst in one-pot oxidative esterification of benzaldehyde with hydrogen peroxide.

Tungstic Acid: A Simple and Effective Solid Catalyst in Terpene Alcohol Oxidation Reactions with Hydrogen Peroxide

“…Therefore, the H 2 WO 4catalyzed borneol oxidation reactions with hydrogen peroxide were carried in according to previous work [19]. In that work, it was veri ed that due to the lower reactivity of borneol if compared to the terpene alcohols (i.e., allylic, primary, acyclic), the reactions should be carried out at higher temperatures, greater than 333 K, as performed in the oxidation of geraniol or nerol [39]. It motivated the replacement of CH 3 CN solvent for DMA.…”

Dendritic polyamide-amine modified phosphomolybdovanadic hybrid microspheres as a catalyst for methacrolein to methacrylic acid

“…Heteropolyacids (HPAs) are a class of metal–oxygen cluster compounds whose structure, morphology, and properties can be precisely tuned by changing the elemental composition and ratio of heteroatoms to coordination atoms. 1–3 HPAs have excellent characteristics such as Brønsted acidity, high proton mobility, and both electron donors and acceptors, making them green catalysts for efficiently catalyzing many organic reactions. 4–7 Among the widely developed HPAs, Keggin-type phosphomolybdovanadic acid (HPAV) is typically applied in the selective oxidation of methacrolein (MAL) to methacrylic acid (MAA), which is also a key intermediate link in the clean production of an important commercial chemical polymethyl methacrylate (PMMA).…”