Galamb, V. published the artcileAlkylcobalt tetracarbonyls. V. Reaction of α-substituted α-haloacetic acid esters with sodium tetracarbonylcobaltate, Category: esters-buliding-blocks, the publication is Acta Chimica Academiae Scientiarum Hungaricae (1982), 111(2), 131-9, database is CAplus.
Treating Na[Co(CO)4] with halo esters BrCHRCO2R1 (R = Me, Me3C, Ph; R1 = Me, Et) gave alkylcobalt tetracarbonyls RCH(CO2R1)Co(CO)4, some of which were isolated. In the case of PhCHBrCO2Et, the π-benzyl cobalt complex I was also obtained. Decomposition of the reaction mixtures yielded hydrogenated and carbonylated derivatives, along with coupling products of the starting compounds The decomposition involves radical reaction pathways. Treating Na[Co(CO)4] with di-Et bromomalonate gave, after the usual workup, mainly the hydrogenolysis product di-Et malonate.
Acta Chimica Academiae Scientiarum Hungaricae published new progress about 5340-78-3. 5340-78-3 belongs to esters-buliding-blocks, auxiliary class Aliphatic Chain, name is Ethyltert-butylacetate, and the molecular formula is C8H16O2, Category: esters-buliding-blocks.
Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics