Bityukov, Oleg V. published the artcileSolvent-free silica gel mediated decarboxylation of C-O coupling products of β-diketones and β-oxo esters with malonyl peroxides, COA of Formula: C6H8O3, the publication is Mendeleev Communications (2019), 29(1), 55-56, database is CAplus.
Silica gel was found to mediate decarboxylation of tetracarbonyl compounds with a free carboxylic group prepared from β-dicarbonyl compounds and malonyl peroxides to give I [R1 = Me; R2 = Me, CH2Ph, (CH2)2C(O)CH3, etc.; R1R2 = (CH2)3, (CH2)4, O(CH2)2; R3 = Me, OEt; R4 = CHEt2, CH(n-Bu)2, c-C4H7, c-C5H9]. Under solvent-free heterogeneous conditions silica gel effectively acts as a mediator of C-O coupling with further decarboxylation at 120 °C.
Mendeleev Communications published new progress about 517-23-7. 517-23-7 belongs to esters-buliding-blocks, auxiliary class Tetrahydrofuran,Ketone,Ester, name is 3-Acetyldihydrofuran-2(3H)-one, and the molecular formula is C6H8O3, COA of Formula: C6H8O3.
Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics