2021
DOI: 10.3390/pr9010141
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An Expedient Catalytic Process to Obtain Solketal from Biobased Glycerol

Abstract: Developing simple and effective chemistry able to convert industrial waste streams into valuable chemicals is a primary contributor to sustainable development. Working in the context of biodiesel production, we found that plain bisulfate on silica (SSANa, 3.0 mmol/g) proved to be an optimal catalyst to convert glycerol into solketal. With the assistance of a proper anhydrification technique, isolated yields of 96% were achieved working in mild conditions, on 100 g scale.

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Cited by 4 publications
(3 citation statements)
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“…The limited solubility of the pigment in common organic solvents, evidenced during the sequential extraction experiments (Section 2.2), prompted us for the development of an Life 2024, 14, 59 4 of 13 improved extraction method, implemented through the modification of a Dean Stark trap (Figure 2A) [23]. The solvent, contained in a round bottom flask, was refluxed on a cartridge containing a sample of Product A (Figure 2B).…”
Section: Continuous Extraction Of the Organic Fractionmentioning
confidence: 99%
“…The limited solubility of the pigment in common organic solvents, evidenced during the sequential extraction experiments (Section 2.2), prompted us for the development of an Life 2024, 14, 59 4 of 13 improved extraction method, implemented through the modification of a Dean Stark trap (Figure 2A) [23]. The solvent, contained in a round bottom flask, was refluxed on a cartridge containing a sample of Product A (Figure 2B).…”
Section: Continuous Extraction Of the Organic Fractionmentioning
confidence: 99%
“…Various Gly-derived upgraded structures with enhanced properties and extended application profiles are well-described. Solketal [ 6 ] and other acetals, 1,3-propanediol [ 7 , 8 ] and dihydroxy acetone [ 9 ], represent known examples, and among these, a leading position is occupied by glycerol carbonate (GC), which represents the main focus of this work. As a multiple-site electrophile, GC can efficiently and selectively interact with diverse nucleophiles, such as amines [ 10 , 11 , 12 ], amino acids [ 13 , 14 ], phenols [ 15 ], carboxylates [ 16 ], and others [ 17 ].…”
Section: Introductionmentioning
confidence: 99%
“…Following the philosophy of the circular economy, a valorization route for this by-product should be proposed. One of the possible recovery routes is the one discussed in paper 2 of this Special Issue by Roncaglia et al [2], where glycerol is transformed into acetals, which are added to gasoline to increase its octane number or to diesel to reduce particulate emissions. For the process to be cost-effective, and therefore scalable, it is necessary to use simple and robust chemistry.…”
mentioning
confidence: 99%