Formula: C5H6O2. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 5-Methylfuran-2(3H)-one, is researched, Molecular C5H6O2, CAS is 591-12-8, about Stereoconvergent Conjugate Addition of Arylboronic Acids to α-Angelica Lactone Derivatives: Synthesis of Stereochemically Complex γ-Butyrolactones. Author is Griswold, Jessica A.; Johnson, Jeffrey S..
Catalyzed stereoconvergent 1,4-additions to unsaturated carbonyls are rare but of high potential value. This letter details the development of enantioselective arylation reactions of boronic acids and β,γ-butenolides. These reactions are catalyzed by com. available hydroxy[(S)-BINAP]-rhodium(I) dimer to afford stereochem. complex γ-butyrolactone derivatives The reaction products provide functionality amenable to further manipulation and can lead to products with up to three contiguous stereocenters. The reaction proceeds under a dynamic kinetic resolution manifold by isomerizing the achiral starting material into an interconverting mixture of enantiomeric conjugate acceptors, followed by catalyst-controlled, enantiomer-selective 1,4-additionBase-promoted racemization of the intermediate α,β-butenolide is possible due to the high kinetic and thermodn. acidity of the γ-proton.
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Reference:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia