Results 31 to 40 of about 5,717,411 (161)

Acid-Modified Clays for the Catalytic Obtention of 5-Hydroxymethylfurfural from Glucose

ChemEngineering, 2022
5-hydroxymethylfurfural (5-HMF) is an important platform molecule for the synthesis of high-added value products. Several synthesized clay materials, such as mesoporous hectorite and fluorohectorite, in addition to commercial montmorillonite K-10, have ...
Vladimir Sánchez, María Dolores González, Pilar Salagre, Yolanda Cesteros   +3 more
doaj   +1 more source

Advances in Sustainable Production of Bio‐Derived 5‐Alkoxymethylfurfural and Levulinate Esters: A Comprehensive Review

Carbon Energy, EarlyView.
The present review discusses the advancement in the catalytic synthesis of 5‐alkoxymethylfurfural (AMF) and levulinate esters (LEs) from the aspects of catalytic systems, reaction mechanisms, product isolation, and techno‐economic analysis, supplying valuable insights toward future sustainable and efficient manufacture of AMF and LEs. ABSTRACT The huge
Jun Zhang, Chunxiang Yang, Yuhe Liao, Jiawei Wang, Chengyu Li, Rui Shan, Haoran Yuan   +6 more
wiley   +1 more source

Esterification of renewable levulinic acid to levulinate esters using amberlyst-15 as a solid acid catalyst

, 2017
Levulinic acid (LA) is a versatile biomass-derived building block as it can be used for the synthesis of organic chemicals as alternative to the depleting fossil fuel resources. Levulinate esters, obtained from catalytic esterification of LA with alcohol,
Anis Amalina
core   +2 more sources

Efficient solvent-free microwave-aided synthesis of flavor ester of ethyl lactate: A comparative study with conventional and ultrasound methods

Applied Food Research
Due to the growing interest in the production of flavor esters with a variety of applications in global markets, this work proposed an efficient and practical catalyst solvent-free microwave-aided esterification (MAE) method to produce ethyl lactate.
Zahra Attarzadeh, Mohammad-Taghi Golmakani, Seyed Mohammad Hashem Hosseini, Ali Reza Sardarian, Fatemeh Ghiasi   +4 more
doaj   +1 more source

Learning Strategies from Nature's Blueprint to Cyclic Carbonate Synthesis

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
The development of sustainable synthetic methods for cyclic carbonates draws inspiration from nature, focusing on eco‐friendly processes and renewable resources like CO2 and biomass. This review explore various CO2 activation mechanisms, green chemistry principles, and green catalysts.
Erika Saccullo, Vincenzo Patamia, Chiara Zagni, Antonio Rescifina, Giuseppe Floresta   +4 more
wiley   +1 more source

Efficient Two-Step Sequence for the Synthesis of 2,5-Disubstituted Furan Derivatives from Functionalized Nitroalkanes: Successive Amberlyst A21- and Amberlyst 15-Catalyzed Processes

, 2010
The nitroaldol reaction of ketal-functionalized nitroalkanes with alpha-oxoaldehydes, promoted by Amberlyst A21, followed by acidic treatment (Amberlyst 15) of the obtained nitroalkanol, leads to the formation of 2,5-disubstituted furans in good yields ...
Serena Gabrielli, Alessandro Palmieri, Roberto Ballini, GABRIELLI, Serena, BALLINI, Roberto, PALMIERI, Alessandro   +5 more
core   +2 more sources

A Simple Pseudo-Homogeneous Reversible Kinetic Model for the Esterification of Different Fatty Acids with Methanol in the Presence of Amberlyst-15

Energies, 2018
Fatty acid esterification with alcohols is a crucial step in biodiesel synthesis. Biodiesel consists of long-chain alkyl esters that derive from the transesterification or hydro-esterification of the triglycerides that are contained in vegetable oils. In
Mauro Banchero, Giuseppe Gozzelino
doaj   +1 more source

Recent advances in polymeric chemically amplified positive resists: Materials and design strategies

Smart Molecules, EarlyView.
This review summarizes recent advances in the molecular design of positive chemically amplified resists, focusing on photoacid generators and polymer architectures. Key strategies for enhancing sensitivity—including self‐amplification effects, copolymerization of sensitive monomers, controlled polymerization, and photosensitized chemically amplified ...
Litao Zhou, Haoyuan Li, Jianhua Zhang, Hanshen Xin   +3 more
wiley   +1 more source

Propiyonik asitin isobütil alkol ile Amberlyst 36 ve Amberlyst 70 katalizörleri varlığında esterleşme kinetiği [PDF]

, 2018
The esterification of propionic acid with isobutyl alcohol has been studied in a batch reactor in the presence of Amberlyst 36 and Amberlyst 70 catalysts.
Hoşgün, Halit Levent, Çıtak, Alime
core   +2 more sources

Amberlyst-A26-Mediated Corey–Chaykovsky Cyclopropanation of 9‑Alkylidene‑9H‑fluorene under Continuous Process

Herein, we have developed a continuous-process for the direct cyclopropanation of various alkenes nonconjugated with carbonyl using trimethylsulfoxonium iodide as a methylene source via the Corey–Chaykovsky cyclopropanation reaction in the presence of ...
Boopathy Gnanaprakasam (2230753), Moseen A. Shaikh (8298480), Akash S. Ubale (7904234)   +2 more
core   +2 more sources