12 results found
Beynon OT, Owens A, Tarantino G, et al., 2023, Computational Study of the Solid-State Incorporation of Sn(II) Acetate into Zeolite β, The Journal of Physical Chemistry C, ISSN: 1932-7447
Navar R, Tarantino G, Beynon OT, et al., 2022, Tracking the solid-state incorporation of Sn into the framework of dealuminated zeolite beta, and consequences for catalyst design, JOURNAL OF MATERIALS CHEMISTRY A, Vol: 10, Pages: 22025-22041, ISSN: 2050-7488
Navar R, Botti L, Tarantino G, et al., 2022, Catalytic Performances of Sn-Beta Catalysts Prepared from Different Heteroatom-Containing Beta Zeolites for the Retro-Aldol Fragmentation of Glucose, Reactions, Vol: 3, Pages: 265-282
<jats:p>Beta zeolites with different heteroatoms incorporated into the lattice at two loadings (Si/M = 100 or 200, where M = Al, Fe, Ga, B) were hydrothermally synthesised and used as starting materials for the preparation of Sn-Beta using Solid-State Incorporation. 119Sn CPMG MAS NMR showed that various Sn species were formed, the distribution of which depended on the identity of the initial heteroatom and the original Si/M ratio. The final Sn-Beta materials (with Si/Sn = 200) were explored as catalysts for the retro-aldol fragmentation of glucose to α-hydroxy-esters in the continuous regime. Amongst these materials, B-derived Sn-Beta was found to exhibit improved levels of selectivity and stability, particularly compared to Sn-Beta catalysts synthesised from commercially available Al-Beta materials, achieving a combined yield of methyl lactate and methyl vinyl glycolate > 80% at short times on the stream. Given that B atoms can be removed from the Beta lattice in mild conditions without the use of highly concentrated acidic media, this discovery demonstrates that B-Beta is an attractive starting material for the future post-synthetic preparation of Lewis acidic zeolites.</jats:p>
Caiti M, Tarantino G, Hammond C, 2020, Developing a Continuous Process for Isosorbide Production from Renewable Sources, CHEMCATCHEM, Vol: 12, Pages: 6393-6400, ISSN: 1867-3880
Tarantino G, Hammond C, 2020, Catalytic C(sp(3))-F bond formation: recent achievements and pertaining challenges, GREEN CHEMISTRY, Vol: 22, Pages: 5195-5209, ISSN: 1463-9262
Nicolau G, Tarantino G, Hammond C, 2019, Acceptorless Alcohol Dehydrogenation Catalysed by Pd/C, CHEMSUSCHEM, Vol: 12, Pages: 4953-4961, ISSN: 1864-5631
Tarantino G, Hammond C, 2018, Catalytic formation of C(sp(3))-F bonds via heterogeneous photocatalysis, ACS Catalysis, Vol: 8, Pages: 10321-10330, ISSN: 2155-5435
Due to their chemical, physical, and biological properties, fluorinated compounds are widely employed throughout society. Yet, despite their critical importance, current methods of introducing fluorine into compounds suffer from severe drawbacks. For example, several methods are noncatalytic and employ stoichiometric equivalents of heavy metals. Existing catalytic methods, on the other hand, exhibit poor activity, generality, selectivity and/or have not been achieved by heterogeneous catalysis, despite the many advantages such an approach would provide. Here, we demonstrate how selective C(sp3)–F bond synthesis can be achieved via heterogeneous photocatalysis. Employing TiO2 as photocatalyst and Selectfluor as mild fluorine donor, effective decarboxylative fluorination of a variety of carboxylic acids can be achieved in very short reaction times. In addition to displaying the highest turnover frequencies of any reported fluorination catalyst to date (up to 1050 h–1), TiO2 also demonstrates excellent levels of durability, and the system is catalytic in the number of photons required; i.e., a photon efficiency greater than 1 is observed. These factors, coupled with the generality and mild nature of the reaction system, represent a breakthrough toward the sustainable synthesis of fluorinated compounds.
Hammond C, Padovan D, Tarantino G, 2018, Porous metallosilicates for heterogeneous, liquid-phase catalysis: perspectives and pertaining challenges, ROYAL SOCIETY OPEN SCIENCE, Vol: 5, ISSN: 2054-5703
Tarantino G, Botti L, Dimitratos N, et al., 2017, Catalytic formation of C(sp(3))-F bonds via decarboxylative fluorination with mechanochemically-prepared Ag2O/TiO2 heterogeneous catalysts, RSC ADVANCES, Vol: 7, Pages: 30185-30190, ISSN: 2046-2069
D'Alonzo D, Cipolletti M, Tarantino G, et al., 2016, A Semisynthetic Approach to New Immunoadjuvant Candidates: Site-Selective Chemical Manipulation of<i>Escherichia coli</i>Monophosphoryl Lipid A, Chemistry - A European Journal, Vol: 22, Pages: 11053-11063, ISSN: 0947-6539
Hammond C, Tarantino G, 2015, Switching off H2O2 Decomposition during TS-1 Catalysed Epoxidation via Post-Synthetic Active Site Modification, Catalysts, Vol: 5, Pages: 2309-2323
Tarantino G, Curcio M, Pica A, et al., 2014, Hydrophilic Pd <sup>0</sup> Complexes Based on Sugars for Efficient Suzuki–Miyaura Coupling in Aqueous Systems, European Journal of Inorganic Chemistry, Vol: 2014, Pages: 4199-4208, ISSN: 1434-1948
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