Angelica Lactones: From Biomass‐Derived Platform Chemicals to Value‐Added Products

CGS Lima, JL Monteiro, T de Melo Lima… - …, 2018 - Wiley Online Library
The upgrading of biomass‐derived compounds has arisen in recent years as a very
promising research field in both academia and industry. In this sense, a lot of new processes …

Effects of water in the heterogeneous catalytic valorization of levulinic acid into γ-valerolactone and its derivatives

R Weng, Z Yu, J Xiong, X Lu - Green Chemistry, 2020 - pubs.rsc.org
Levulinic acid (LA), which is considered a versatile biomass-derived molecular platform,
typically occupies a core position in the cellulosic biorefinery system. The heterogeneous …

Role of Brønsted and Lewis acid sites on Ni/TiO2 catalyst for vapour phase hydrogenation of levulinic acid: Kinetic and mechanistic study

VV Kumar, G Naresh, M Sudhakar, J Tardio… - Applied Catalysis A …, 2015 - Elsevier
Abstract The TiO 2 supported Ni catalysts were investigated for vapour phase hydrogenation
of aqueous levulinic acid at ambient pressure. Ni/TiO 2 demonstrated high selectivity of γ …

Selective aldol condensation of biomass-derived levulinic acid and furfural in aqueous-phase over MgO and ZnO

G Liang, A Wang, X Zhao, N Lei, T Zhang - Green Chemistry, 2016 - pubs.rsc.org
The aldol condensation of furfural with levulinic acid in the aqueous phase was investigated
over a series of solid catalysts, including oxides (MgO, ZnO, TiO2, ZrO2, MgO–Al2O3, CeO2 …

One‐Pot 2‐Methyltetrahydrofuran Production from Levulinic Acid in Green Solvents Using Ni‐Cu/Al2O3 Catalysts

I Obregón, I Gandarias, N Miletić, A Ocio… - …, 2015 - Wiley Online Library
The one‐pot hydrogenation of levulinic acid to 2‐methyltetrahydrofuran (MTHF) was
performed using a series of Ni‐Cu/Al2O3 catalysts in green solvents, such as water and …

DMSO/iodine-catalyzed oxidative C–Se/C–S bond formation: a regioselective synthesis of unsymmetrical chalcogenides with nitrogen-or oxygen-containing arenes

S Saba, J Rafique, AL Braga - Catalysis Science & Technology, 2016 - pubs.rsc.org
A convenient metal-free and solvent-free iodine-catalyzed regioselective greener protocol to
access different types of unsymmetrical chalcogenides with nitrogen-or oxygen-containing …

The role of the hydrogen source on the selective production of γ‐valerolactone and 2‐methyltetrahydrofuran from levulinic acid

I Obregón, I Gandarias, MG Al‐Shaal… - …, 2016 - Wiley Online Library
A mechanistic study of the hydrogenation reaction of levulinic acid (LA) to 2‐
methyltetrahydrofuyran (MTHF) was performed using three different solvents under reactive …

Mechanistic Investigations into the Catalytic Levulinic Acid Hydrogenation, Insight in H/D Exchange Pathways, and a Synthetic Route to d8-γ-Valerolactone

Q Yuan, HH Van De Bovenkamp, Z Zhang… - ACS …, 2021 - ACS Publications
γ-Valerolactone (GVL) is readily accessible by catalytic hydrogenation of carbohydrate-
derived levulinic acid (LA) and is an attractive biobased chemical with a wide range of …

Catalytic upgrading of α-angelica lactone to levulinic acid esters under mild conditions over heterogeneous catalysts

MG Al-Shaal, W Ciptonugroho… - Catalysis Science & …, 2015 - pubs.rsc.org
Butyl levulinate was prepared starting from α-angelica lactone and butanol over Amberlyst®
36. Different reaction conditions were optimized, which resulted in full conversion and 94 …

Cascade strategy for the tunable catalytic valorization of levulinic acid and γ-valerolactone to 2-methyltetrahydrofuran and alcohols

D Licursi, C Antonetti, S Fulignati, M Giannoni… - Catalysts, 2018 - mdpi.com
A cascade strategy for the catalytic valorization of aqueous solutions of levulinic acid as well
as of γ-valerolactone to 2-methyltetrahydrofuran or to monoalcohols, 2-butanol and 2 …