1055361-35-7, Name is 4-(4-((2,4-Dioxothiazolidin-5-ylidene)methyl)-2-methoxyphenoxy)-3-(trifluoromethyl)benzonitrile, belongs to thiazolidine compound, is a common compound. COA of Formula: C19H11F3N2O4SIn an article, once mentioned the new application about 1055361-35-7.
Achiral counterion control of enantioselectivity in a Bronsted acid-catalyzed lactonization
Highly enantioselective halolactonizations have been developed that employ a chiral proton catalyst-N-iodosuccinimide (NIS) reagent system in which the Bronsted acid is used at catalyst loadings as low as 1 mol %. An approach that modulates the achiral counterion (equimolar to the neutral chiral ligand-proton complex present at low catalyst loadings) to optimize the enantioselection is documented for the first time in this transformation. In this way, unsaturated carboxylic acids are converted to gamma-lactones in high yields (up to 98% ee) using commercially available NIS.
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Reference£º
Quinuclidine – Wikipedia,
Quinuclidine | C7H886N | ChemSpider