Pisella, Guillaume published the artcileThree-Component Reaction for the Synthesis of Highly Functionalized Propargyl Ethers, Safety of 3-Acetyldihydrofuran-2(3H)-one, the publication is Chemistry – A European Journal (2020), 26(45), 10199-10204, database is CAplus and MEDLINE.
Copper-catalyzed three-component reaction of diazo compounds, alcs. and ethynyl benziodoxole (EBX) reagents for the synthesis of propargyl ethers was reported. Extensive variations of the three partners of the reaction was possible, led to highly functionalized and structurally diverse products under mild conditions. Alkynylation of a copper ylide intermediate was postulated as key step for this transformation.
Chemistry – A European Journal 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, Safety of 3-Acetyldihydrofuran-2(3H)-one.
Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics