Results 11 to 20 of about 167 (134)

ON TRIPHENYLMETHYL ACETATE. [PDF]

Journal of the American Chemical Society, 1903
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Gomberg, M., Davis, G. T.
openaire   +2 more sources

Efficient and recyclable Rh-catalytic system with involvement of phosphine-functionalized phosphonium-based ionic liquids for tandem hydroformylation–acetalization

Green Energy & Environment, 2017
The phosphine-functionalized phosphonium-based ionic liquids (dppm-Q, dppe-Q, dppp-Q and dppb-Q) as the bi-functional ligands enable the efficient one-pot tandem hydroformylation–acetalization.
Peng Wang, Xia Chen, Dong-Liang Wang, Yong-Qi Li, Ye Liu   +4 more
doaj   +1 more source

Selective Hierarchical Aluminosilicates for Acetalization Reaction with Propylene Glycol

Indonesian Journal of Chemistry, 2019
Hierarchical micro-mesoporous aluminosilicates nanoparticles were synthesized at different of Si/Al ratios and were directly used as a solid acid catalyst for acetalization reaction with propylene glycol.
Hartati Hartati, Mardi Santoso, Hadi Nur, Leaw Wai Loon, Hasliza Bahruji, Imroatul Qoniah, Didik Prasetyoko   +6 more
doaj   +1 more source

Towards a Rational Design of a Continuous-Flow Method for the Acetalization of Crude Glycerol: Scope and Limitations of Commercial Amberlyst 36 and AlF3·3H2O as Model Catalysts

Molecules, 2016
The acetalization of six different types of glycerol including pure, wet, and crude-like grade compounds of compositions simulating those of crude glycerols produced by the biodiesel manufacture, was carried out with two model ketones such as acetone and
Sandro Guidi, Marco Noè, Pietro Riello, Alvise Perosa, Maurizio Selva   +4 more
doaj   +1 more source

Sulfuric Acid Immobilized on Activated Carbon Aminated with Ethylenediamine: An Efficient Reusable Catalyst for the Synthesis of Acetals (Ketals)

Nanomaterials, 2022
Through the amination of oxidized activated carbon with ethylenediamine and then the adsorption of sulfuric acid, a strong carbon-based solid acid catalyst with hydrogen sulfate (denoted as AC-N-SO4H) was prepared, of which the surface acid density was 0.
Wenzhu Liu, Ruike Guo, Guanmin Peng, Dulin Yin   +3 more
doaj   +1 more source

TRANSACETALIZATION OF GLYCEROL WITH 2,2-DIMETHOXYPROPANE USING ZEOLITES UNDER MILD CONDITIONS [PDF]

Química Nova
The acetalization or transacetalization reactions produce acetals or ketals used in cosmetics, food, pharmaceuticals, and fuel additives. Besides synthesizing several products, the acetalization or transacetalization reactions can protect carbonyl groups,
Paula M. Veiga, Ayres G. Dias, Cláudia de O. Veloso, Cristiane A. Henriques   +3 more
doaj   +1 more source

Ketal Protection of Glycerol for Selective Electrosynthesis of Glyceric Acid in Highly Alkaline Media

Angewandte Chemie, EarlyView.
Using a ketal‐protected glycerol derivative (solketal) as the oxidation substrate enables site‐selective electrooxidation that suppresses C–C cleavage on non‐noble catalysts. Highly alkaline conditions promote reactive solketal alkoxide formation, weaken the Cα─H bond to facilitate dehydrogenation, and buffer local acidification, enabling a record‐high
Jiamin Wang, Baokun Zhang, Kanglei Pang, Egon Campos dos Santos, Hong Liu, Mats Johnsson, Xiaowen Yu   +6 more
wiley   +2 more sources

Cyclic Acetalization of Furfural on Porous Aluminosilicate Acid Catalysts

Indonesian Journal of Chemistry, 2016
Porous aluminosilicate materials included microporous and mesoporous ZSM-5, hierarchical aluminosilicates, and mesoporous aluminosilicate were tested for acetalization of furfural (furan-2-carbaldehyde) with propylene glycol.
Hartati Hartati, Didik Prasetyoko, Mardi Santoso   +2 more
doaj   +1 more source

Investigation on the thermal properties of new thermo-reversible networks based on poly(vinyl furfural) and multifunctional maleimide compounds

eXPRESS Polymer Letters, 2012
New thermo-reversible networks were obtained from poly(vinyl furfural) and multifunctional maleimide monomers by Diels-Alder (DA) and retro-DA reactions.
C. Gaina, O. Ursache, V. Gaina, E. Buruiana, D. Ionita   +4 more
doaj   +1 more source

Algerian Acid Activated Clays as Efficient Catalysts for a Green Synthesis of Solketal by Chemoselective Acetalization of Glycerol with Acetone

Bulletin of Chemical Reaction Engineering & Catalysis, 2019
The production of solketal and conversion of glycerol takes a major importance in the field of the sustainability of the biodiesel industry. The synthesis of (2,2-dimethyl-1,3-dioxolan-4-yl)methanol by the acetalization of glycerol with acetone ...
Kouider Alali, Fouad Lebsir, Sondes Amri, Ali Rahmouni, Ezzedine Srasra, Néji Besbes   +5 more
doaj   +1 more source