Reactions of terpenes catalyzed by heteropoly compounds: Valorization of biorenewables

EV Gusevskaya - ChemCatChem, 2014 - Wiley Online Library
Heteropoly compounds (HPCs) have already proved their high potential for the clean
synthesis of commercially valuable chemicals. However, the use of HPCs for the …

Synthesis of (−)‐menthol: industrial synthesis routes and recent development

D Dylong, PJC Hausoul, R Palkovits… - Flavour and …, 2022 - Wiley Online Library
Menthol is one of the most popular aroma compounds worldwide. While in the past mostly
extracted from mint plants, today (−)‐menthol synthesis from other raw materials is becoming …

Ag-PMA supported on MCM-41: surface acidity and catalytic activity

WSA El-Yazeed, SA El-Hakam, RS Salama… - Journal of Sol-Gel …, 2022 - Springer
Herein Ag exchanged phosphomolybdic catalysts were synthesized by ion-exchange
method and characterized using numerous techniques such as XRD, TEM, FTIR, and N2 …

Synthesis of 5-hydroxymethylfurfural from fructose catalyzed by phosphotungstic acid

FNDC Gomes, FMT Mendes, MMVM Souza - Catalysis Today, 2017 - Elsevier
The dehydration of fructose to 5-hydroxymethylfurfural (HMF) is a way to produce a very
versatile intermediate of the green chemistry. Heteropolyacid compounds are acid catalysts …

Tuning the Biginelli reaction mechanism by the ionic liquid effect: the combined role of supported heteropolyacid derivatives and acidic strength

EF Freitas, RY Souza, STA Passos, JA Dias… - RSC …, 2019 - pubs.rsc.org
Herein, a combination of heteropolyacids and ionic liquids as a catalytic system was studied
for the Biginelli multicomponent reaction; the positive ionic liquid effect associated with the …

Ionic liquid effect over the biginelli reaction under homogeneous and heterogeneous catalysis

HGO Alvim, TB de Lima, HCB de Oliveira… - Acs …, 2013 - ACS Publications
Bronsted and Lewis acid catalysts with ionic tags under homogeneous and heterogeneous
conditions have been tested to perform the Biginelli synthesis of 3, 4-dihydropyrimidin-2 (1 …

Phosphotungstic acid on activated carbon: A remarkable catalyst for 5-hydroxymethylfurfural production

NL da Costa, LG Pereira, JVM Resende… - Molecular …, 2021 - Elsevier
Phophotungstic acid (HPW) supported on activated carbon (AC) was prepared and used for
dehydration of fructose to 5-hydroxymethylfurfural (HMF), a biomass-derived precursor for …

HPW/MCM-41 catalytic Simmons-Smith cyclopropanation of olefins for synthesis of high-energy–density fuel

Y Liu, S Yang, C Shi, L Pan, X Zhang, JJ Zou - Chemical Engineering …, 2024 - Elsevier
Simmons-Smith cyclopropanation commonly promoted by CF 3 COOH is one important
method for transforming olefin into high-energy–density cyclopropyl fuel, but it brings …

Synthesis and physicochemical characterization of shaped catalysts of β and Y zeolites for cyclization of citronellal

Z Vajglova, N Kumar, P Maki-Arvela… - Industrial & …, 2019 - ACS Publications
Continuous cyclization of citronellal over zeolite-based extrudates was performed in a trickle-
bed reactor at 35–70° C and 10 bar of argon. Catalytic results were correlated with the …

HPW/MCM-41 catalyzed isomerization and dimerization of pure pinene and crude turpentine

G Nie, JJ Zou, R Feng, X Zhang, L Wang - Catalysis Today, 2014 - Elsevier
Turpentine is biomass derived from metabolites of plants and often utilized via isomerization
or dimerization of pure pinene that are separated from crude turpentine. This work is aimed …