Gundekari, Sreedhar published the artcileChemo- and Regioselective Synthesis of Arylated γ-Valerolactones from Bio-based Levulinic Acid with Aromatics Using H-β Zeolite Catalyst, Related Products of esters-buliding-blocks, the main research area is regioselective valerolactone levulinic zeolite catalyst biomass renewable.
Catalytic coupling of biomass-based mols. to value-added chem. intermediates is an interesting area in biomass research. Arylated γ-valerolactones (Agvls), promising pharmaceutical intermediates that have significant biol. activity, are primarily synthesized currently through petro-route. In this paper, we report successful biomass-based synthesis of Agvls using levulinic acid (LA) and oxygen or sulfur- substituted aromatics over H-β zeolite as catalyst under solvent-free conditions. Under optimized condition, LA and anisole render 90 % conversion of former with 82 % yield of para-substituted γ-lactone. C-C bond formation followed by intra-mol. esterification is witnessed in the course of the reaction, which is highly chemo- and regioselective. Though catalyst deactivated while reuse due to deposition of organic carbon moieties as deduced from several physicochem. techniques, it could be regenerated by simple calcination.
ChemCatChem published new progress about Beta zeolites Role: CAT (Catalyst Use), USES (Uses) (sodium-exchanged, calcinated). 539-88-8 belongs to class esters-buliding-blocks, name is Ethyl 4-oxopentanoate, and the molecular formula is C7H12O3, Related Products of esters-buliding-blocks.
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