Catalytic Enantioselective Addition of Diethylzinc to Trifluoromethyl Ketones was written by Yearick, Kimberly;Wolf, Christian. And the article was included in Organic Letters in 2008.Computed Properties of C11H9F3O3 The following contents are mentioned in the article:
A procedure for nucleophilic addition of diethylzinc to trifluoromethyl ketones was developed. The TMEDA-catalyzed method converts aromatic substrates to the corresponding 2-aryl-1,1,1-trifluorobutan-2-ols in up to 99% yield, and it is also applicable to less reactive aliphatic ketones if stoichiometric ligand amounts are employed. The first asym. variant producing tertiary alcs. with up to 61% ee when TBOX is used as catalyst is described. This study involved multiple reactions and reactants, such as Ethyl 4-(2,2,2-Trifluoroacetyl)benzoate (cas: 898787-14-9Computed Properties of C11H9F3O3).
Ethyl 4-(2,2,2-Trifluoroacetyl)benzoate (cas: 898787-14-9) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Computed Properties of C11H9F3O3
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics